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1. socket在php主要是什么作用用在哪些方面
PHP 使用Berkley的socket库来创建它的连接。你可以知道socket只不过是一个数据结构。你使用这个socket数据结构去开始一个客户端和服务器之间的会话。这个服务器是一直在监听准备产生一个新的会话。当一个客户端连接服务器，它就打开服务器正在进行监听的一个端口进行会话。这时，服务器端接受客户端的连接请求，那么就进行一次循环。现在这个客户端就能够发送信息到服务器，服务器也能发送信息给客户端。
产生一个Socket，你需要三个变量：一个协议、一个socket类型和一个公共协议类型。产生一个socket有三种协议供选择，继续看下面的内容来获取详细的协议内容。
定义一个公共的协议类型是进行连接一个必不可少的元素。下面的表我们看看有那些公共的协议类型。
表一：协议
名字/常量 描述
AF_INET 这是大多数用来产生socket的协议，使用TCP或UDP来传输，用在IPv4的地址
AF_INET6 与上面类似，不过是来用在IPv6的地址
AF_UNIX 本地协议，使用在Unix和Linux系统上，它很少使用，一般都是当客户端和服务器在同一台及其上的时候使用
表二：Socket类型
名字/常量 描述
SOCK_STREAM 这个协议是按照顺序的、可靠的、数据完整的基于字节流的连接。这是一个使用最多的socket类型，这个socket是使用TCP来进行传输。
SOCK_DGRAM 这个协议是无连接的、固定长度的传输调用。该协议是不可靠的，使用UDP来进行它的连接。
SOCK_SEQPACKET 这个协议是双线路的、可靠的连接，发送固定长度的数据包进行传输。必须把这个包完整的接受才能进行读取。
SOCK_RAW 这个socket类型提供单一的网络访问，这个socket类型使用ICMP公共协议。（ping、traceroute使用该协议）
SOCK_RDM 这个类型是很少使用的，在大部分的操作系统上没有实现，它是提供给数据链路层使用，不保证数据包的顺序
表三：公共协议
名字/常量 描述
ICMP 互联网控制消息协议，主要使用在网关和主机上，用来检查网络状况和报告错误信息
UDP 用户数据报文协议，它是一个无连接，不可靠的传输协议
TCP 传输控制协议，这是一个使用最多的可靠的公共协议，它能保证数据包能够到达接受者那儿，如果在传输过程中发生错误，那么它将重新发送出错数据包。
现在你知道了产生一个socket的三个元素，那么我们就在php中使用socket_create()函数来产生一个socket。这个 socket_create()函数需要三个参数：一个协议、一个socket类型、一个公共协议。socket_create()函数运行成功返回一个包含socket的资源类型，如果没有成功则返回false。
Resourece socket_create(int protocol, int socketType, int commonProtocol);
现在你产生一个socket，然后呢？php提供了几个操纵socket的函数。你能够绑定socket到一个IP，监听一个socket的通信，接受一个socket；现在我们来看一个例子，了解函数是如何产生、接受和监听一个socket。
<?php
$commonProtocol = getprotobyname(“tcp”);
$socket = socket_create(AF_INET, SOCK_STREAM, $commonProtocol);
socket_bind($socket, ‘localhost’, 1337);
socket_listen($socket);
// More socket functionality to come
?>
上面这个例子产生一个你自己的服务器端。例子第一行，
$commonProtocol = getprotobyname(“tcp”);
使用公共协议名字来获取一个协议类型。在这里使用的是TCP公共协议，如果你想使用UDP或者ICMP协议，那么你应该把getprotobyname() 函数的参数改为“udp”或“icmp”。还有一个可选的办法是不使用getprotobyname()函数而是指定SOL_TCP或SOL_UDP在 socket_create()函数中。
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
例子的第二行是产生一个socket并且返回一个socket资源的实例。在你有了一个socket资源的实例以后，你就必须把socket绑定到一个IP地址和某一个端口上。
socket_bind($socket, ‘localhost’, 1337);
在这里你绑定socket到本地计算机（127.0.0.1）和绑定socket到你的1337端口。然后你就需要监听所有进来的socket连接。
socket_listen($socket);
在第四行以后，你就需要了解所有的socket函数和他们的使用。
表四：Socket函数
函数名 描述
socket_accept() 接受一个Socket连接
socket_bind() 把socket绑定在一个IP地址和端口上
socket_clear_error() 清除socket的错误或者最后的错误代码
socket_close() 关闭一个socket资源
socket_connect() 开始一个socket连接
socket_create_listen() 在指定端口打开一个socket监听
socket_create_pair() 产生一对没有区别的socket到一个数组里
socket_create() 产生一个socket，相当于产生一个socket的数据结构
socket_get_option() 获取socket选项
socket_getpeername() 获取远程类似主机的ip地址
socket_getsockname() 获取本地socket的ip地址
socket_iovec_add() 添加一个新的向量到一个分散/聚合的数组
socket_iovec_alloc() 这个函数创建一个能够发送接收读写的iovec数据结构
socket_iovec_delete() 删除一个已经分配的iovec
socket_iovec_fetch() 返回指定的iovec资源的数据
socket_iovec_free() 释放一个iovec资源
socket_iovec_set() 设置iovec的数据新值
socket_last_error() 获取当前socket的最后错误代码
socket_listen() 监听由指定socket的所有连接
socket_read() 读取指定长度的数据
socket_readv() 读取从分散/聚合数组过来的数据
socket_recv() 从socket里结束数据到缓存
socket_recvfrom() 接受数据从指定的socket，如果没有指定则默认当前socket
socket_recvmsg() 从iovec里接受消息
socket_select() 多路选择
socket_send() 这个函数发送数据到已连接的socket
socket_sendmsg() 发送消息到socket
socket_sendto() 发送消息到指定地址的socket
socket_set_block() 在socket里设置为块模式
socket_set_nonblock() socket里设置为非块模式
socket_set_option() 设置socket选项
socket_shutdown() 这个函数允许你关闭读、写、或者指定的socket
socket_strerror() 返回指定错误号的详细错误
socket_write() 写数据到socket缓存
socket_writev() 写数据到分散/聚合数组
(注: 函数介绍删减了部分原文内容，函数详细使用建议参考英文原文，或者参考PHP手册)
以上所有的函数都是PHP中关于socket的，使用这些函数，你必须把你的socket打开，如果你没有打开，请编辑你的php.ini文件，去掉下面这行前面的注释：
extension=php_sockets.dll
如果你无法去掉注释，那么请使用下面的代码来加载扩展库：
<?php
if(!extension_loaded(‘sockets’))
{
if(strtoupper(substr(PHP_OS, 3)) == “WIN”)
{
dl(‘php_sockets.dll’);
}
else
{
dl(‘sockets.so’);
}
}
?>
如果你不知道你的socket是否打开，那么你可以使用phpinfo()函数来确定socket是否打开。你通过查看phpinfo信息了解socket是否打开。如下图：
查看phpinfo()关于socket的信息
◆产生一个服务器
现在我们把第一个例子进行完善。你需要监听一个指定的socket并且处理用户的连接。
<?php
$commonProtocol = getprotobyname("tcp");
$socket = socket_create(AF_INET, SOCK_STREAM, $commonProtocol);
socket_bind($socket, 'localhost', 1337);
socket_listen($socket);
// Accept any incoming connections to the server
$connection = socket_accept($socket);
if($connection)
{
socket_write($connection, "You have connected to the socket.../n/r");
}
?>
你应该使用你的命令提示符来运行这个例子。理由是因为这里将产生一个服务器，而不是一个Web页面。如果你尝试使用Web浏览器来运行这个脚本，那么很有可能它会超过30秒的限时。你可以使用下面的代码来设置一个无限的运行时间，但是还是建议使用命令提示符来运行。
set_time_limit(0);
在你的命令提示符中对这个脚本进行简单测试：
Php.exe example01_server.php
如果你没有在系统的环境变量中设置php解释器的路径，那么你将需要给php.exe指定详细的路径。当你运行这个服务器端的时候，你能够通过远程登陆（telnet）的方式连接到端口1337来测试这个服务器。如下图：
上面的服务器端有三个问题：1. 它不能接受多个连接。2. 它只完成唯一的一个命令。3. 你不能通过Web浏览器连接这个服务器。
这个第一个问题比较容易解决，你可以使用一个应用程序去每次都连接到服务器。但是后面的问题是你需要使用一个Web页面去连接这个服务器，这个比较困难。你可以让你的服务器接受连接，然后些数据到客户端（如果它一定要写的话），关闭连接并且等待下一个连接。
在上一个代码的基础上再改进，产生下面的代码来做你的新服务器端：
<?php
// Set up our socket
$commonProtocol = getprotobyname("tcp");
$socket = socket_create(AF_INET, SOCK_STREAM, $commonProtocol);
socket_bind($socket, 'localhost', 1337);
socket_listen($socket);
// Initialize the buffer
$buffer = "NO DATA";
while(true)
{
// Accept any connections coming in on this socket
$connection = socket_accept($socket);
printf("Socket connected/r/n");
// Check to see if there is anything in the buffer
if($buffer != "")
{
printf("Something is in the buffer...sending data.../r/n");
socket_write($connection, $buffer . "/r/n");
printf("Wrote to socket/r/n");
}
else
{
printf("No Data in the buffer/r/n");
}
// Get the input
while($data = socket_read($connection, 1024, PHP_NORMAL_READ))
{
$buffer = $data;
socket_write($connection, "Information Received/r/n");
printf("Buffer: " . $buffer . "/r/n");
}
socket_close($connection);
printf("Closed the socket/r/n/r/n");
}
?>
这个服务器端要做什么呢？它初始化一个socket并且打开一个缓存收发数据。它等待连接，一旦产生一个连接，它将打印“Socket connected”在服务器端的屏幕上。这个服务器检查缓冲区，如果缓冲区里有数据，它将把数据发送到连接过来的计算机。然后它发送这个数据的接受信息，一旦它接受了信息，就把信息保存到数据里，并且让连接的计算机知道这些信息，最后关闭连接。当连接关闭后，服务器又开始处理下一次连接。(翻译的烂，附上原文)
This is what the server does. It initializes the socket and the buffer that you use to receive
and send data. Then it waits for a connection. Once a connection is created it prints
“Socket connected” to the screen the server is running on. The server then checks to see if
there is anything in the buffer; if there is, it sends the data to the connected computer.
After it sends the data it waits to receive information. Once it receives information it stores
it in the data, lets the connected computer know that it has received the information, and
then closes the connection. After the connection is closed, the server starts the whole
process again.
◆产生一个客户端
处理第二个问题是很容易的。你需要产生一个php页连接一个socket，发送一些数据进它的缓存并处理它。然后你又个处理后的数据在还顿，你能够发送你的数据到服务器。在另外一台客户端连接，它将处理那些数据。
To solve the second problem is very easy. You need to create a PHP page that connects to
a socket, receive any data that is in the buffer, and process it. After you have processed the
data in the buffer you can send your data to the server. When another client connects, it
will process the data you sent and the client will send more data back to the server.
下面的例子示范了使用socket：
<?php
// Create the socket and connect
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
$connection = socket_connect($socket,’localhost’, 1337);
while($buffer = socket_read($socket, 1024, PHP_NORMAL_READ))
{
if($buffer == “NO DATA”)
{
echo(“<p>NO DATA</p>”);
break;
}
else
{
// Do something with the data in the buffer
echo(“<p>Buffer Data: “ . $buffer . “</p>”);
}
}
echo(“<p>Writing to Socket</p>”);
// Write some test data to our socket
if(!socket_write($socket, “SOME DATA/r/n”))
{
echo(“<p>Write failed</p>”);
}
// Read any response from the socket
while($buffer = socket_read($socket, 1024, PHP_NORMAL_READ))
{
echo(“<p>Data sent was: SOME DATA<br> Response was:” . $buffer . “</p>”);
}
echo(“<p>Done Reading from Socket</p>”);
?>
这个例子的代码演示了客户端连接到服务器。客户端读取数据。如果这是第一时间到达这个循环的首次连接，这个服务器将发送“NO DATA”返回给客户端。如果情况发生了，这个客户端在连接之上。客户端发送它的数据到服务器，数据发送给服务器，客户端等待响应。一旦接受到响应，那么它将把响应写到屏幕上。
2. php系统函数socket_connect信息乱码
这种情况基森穗雀本是编码的问族悔题了此早，可以排查。
3. 请教php大神，php如何实现点击页面上的一个按钮发送socket的tcp数据
1.参考资料
socket_create()函数需要三个参数：一个协议、一个socket类型、一个公共协议。socket_create()函数运行成功返回一个
包含socket的资源类型，如果没有成功则返回false。
Socket函数
函数名 描述
函数名 描述
socket_accept() 接受一个Socket连接
socket_bind() 把socket绑定在一个IP地址和端口上
socket_clear_error() 清除socket的错误或最后的错误代码
socket_close() 关闭一个socket资源
socket_connect() 开始一个socket连接
socket_create_listen() 在指定端口打开一个socket监听
socket_create_pair() 产生一对没有差别的socket到一个数组里
socket_create() 产生一个socket，相当于产生一个socket的数据结构
socket_get_option() 获取socket选项
socket_getpeername() 获取远程类似主机的ip地址
socket_getsockname() 获取本地socket的ip地址
socket_iovec_add() 添加一个新的向量到一个分散/聚合的数组
socket_iovec_alloc() 这个函数创建一个能够发送接收读写的iovec数据结构
socket_iovec_delete() 删除一个已分配的iovec
socket_iovec_fetch() 返回指定的iovec资源的数据
socket_iovec_free() 释放一个iovec资源
socket_iovec_set() 设置iovec的数据新值
socket_last_error() 获取当前socket的最后错误代码
socket_listen() 监听由指定socket的所有连接
socket_read() 读取指定长度的数据
socket_readv() 读取从分散/聚合数组过来的数据
socket_recv() 从socket里结束数据到缓存
socket_recvfrom() 接受数据从指定的socket，如果没有指定则默认当前socket
socket_recvmsg() 从iovec里接受消息
socket_select() 多路选择
socket_send() 这个函数发送数据到已连接的socket
socket_sendmsg() 发送消息到socket
socket_sendto() 发送消息到指定地址的socket
socket_set_block() 在socket里设置为块模式
socket_set_nonblock() socket里设置为非块模式
socket_set_option() 设置socket选项
socket_shutdown() 这个函数允许你关闭读、写、或指定的socket
socket_strerror() 返回指定错误号的周详错误
socket_write() 写数据到socket缓存
socket_writev() 写数据到分散/聚合数组
2.代码：
<?php
$sendStr='30323034033033';//16进制数据
$sendStrArray=str_split(str_replace('','',$sendStr),2);//将16进制数据转换成两个一组的数组
$socket=socket_create(AF_INET,SOCK_STREAM,getprotobyname("tcp"));//创建Socket
if(socket_connect($socket,"192.168.1.100",8080)){//连接
for($j=0;$j<count($sendStrArray);$j++){
socket_write($socket,chr(hexdec($sendStrArray[$j])));//逐组数据发送
}
$receiveStr="";
$receiveStr=socket_read($socket,1024,PHP_BINARY_READ);//采用2进制方式接收数据
$receiveStrHex=bin2hex($receiveStr);//将2进制数据转换成16进制
echo"client:".$receiveStrHex;
}
socket_close($socket);//关闭Socket
?>
4. 关于php中socket的问题：
这是socket的服务端的代码，监听的ip地址是192.168.168.121，端口号为8528
请检查以下几点
这个ip是不是代码所在服务器的ip，一般监测内网ip，如127.0.0.1
端口号是否被使用，可以使用cmd命令 netstat -ano|findstr 8528 查找端口号为8528的端口使用情况
如果要给在公网上使用，请使用公网ip，这样可以外网使用
如果代码不报错可以试下telnet下你的端口号，看是否可以使用
如 telnet 127.0.0.1 8528
解决方案
查看你电脑的ip地址，把上面代码里“$address = '192.168.168.121';”这个ip地址换成“$address = '127.0.0.1';”或者你电脑的ip地址，再试试。
（ip地址改成127.0.0.1后，这段代码在我电脑上可以使用）
5. php系统函数socket_connect信息乱码
你要连接的服务器没开通对应的端口，或者有防火墙屏蔽了
6. php 的 socket如何判断连接已经断开
当连接断开时，读写socket的函数会失败。如socket_read()在读取失败时布尔值false。这时可以调用socket_last_error()和socket_strerror()函数得到错误代码和错误信息。可以根据这个判断失败原因是否为连接断开。
望采纳~~
7. php判断是否是json
这篇文章主要介绍了php判断是否为json格式的方法,需要的朋友可以参考下
首先要记住json_encode返回的是字符串,而json_decode返回的是对象
判断数据不是JSON格式:
复制代码代码如悉含下:
functionis_not_json($str){
return
is_null(json_decode($str));
}
判断数据是合基陆庆法的json数据:(PHP版本大于5.3)
复制代码代码如下:
functionis_json($string){
www.jb51.net
json_decode($string);
return(json_last_error()==
JSON_ERROR_NONE);
}
json_last_error()函数返回数据编解码搏握过程中发生的错误
注意:json编解码所操作字符串必须是UTF8的
例子
复制代码代码如下:
/**
*解析json串
*@paramtype
$json_str
*@returntype
*/
functionanalyJson($json_str)
{
$json_str=str_replace('＼＼','',$json_str);
$out_arr=
array();
preg_match('/{.*}/',$json_str,$out_arr);
if(!empty($out_arr))
{
$result=json_decode($out_arr[0],TRUE);
}else{
return
FALSE;
}
return$result;
}
如果不是json则返回false
8. 求php同时上传两张图片并根据时间存入数据库！根据下面的代码来修改！
我给你个简单的吧 这个可以实现三个一起或厅桐上传 这个是我自己用的 做了点调整
uploadCore.php 页面代码
<?php
/*
* @(#)UploadFile.php (beta) 2005/2/19
*
* exBlog上传附件类，可同时处理用户多个上传文件。效验文件有效性后存储至指定目录。
* 可返回上传文件的相关有用信息供其它程序使用。（如文件名、类型、大小、保存路径）
* 使用方法请见本类底部（UploadFile类使用注释）信息。
*/
class UploadFile {
var $user_post_file = array(); //用户上传的文件
var $user_name_u = array();//username
//var $user_name_y = array(); //usertype
var $save_file_path; //存放用户上传文件的路径
var $max_file_size; //文件最大尺寸
var $last_error; //记录最后一次出错信息
//默认允许用户上传的文件类型
var $allow_type = array('gif', 'jpg', 'png', 'zip', 'rar', 'txt', 'doc', 'pdf');
var $final_file_path; //最终保存的文件名
var $save_info = array(); //返回一组有用信息，用衫坦于提示用户。
/**
* 构造函数，用与初始化相关信息，用户待上传文件、存储路径等
*
* @param Array $file 用户上伏镇传的文件
* @param String $path 存储用户上传文件的路径
* @param Integer $size 允许用户上传文件的大小(字节)
* @param Array $type 此数组中存放允计用户上传的文件类型
*/
function UploadFile($file, $uname, $path, $size = 2097152, $type = '') {
$this->user_name_u = $uname;
//$this->user_name_y = $utype;
$this->user_post_file = $file;
$this->save_file_path = $path;
$this->max_file_size = $size; //如果用户不填写文件大小，则默认为2M.
if ($type != '')
$this->allow_type = $type;
}
/**
* 存储用户上传文件，检验合法性通过后，存储至指定位置。
* @access public
* @return int 值为0时上传失败，非0表示上传成功的个数。
*/
function upload() {
for ($i = 0; $i < count($this->user_post_file['name']); $i++) {
//如果当前文件上传功能，则执行下一步。
if ($this->user_post_file['error'][$i] == 0) {
//取当前文件名、临时文件名、大小、扩展名，后面将用到。
$userty = $this->user_name_y[$i];
$uuname = $this->user_name_u[$i];
$name = $this->user_post_file['name'][$i];
$tmpname = $this->user_post_file['tmp_name'][$i];
$size = $this->user_post_file['size'][$i];
$mime_type = $this->user_post_file['type'][$i];
$type = $this->getFileExt($this->user_post_file['name'][$i]);
//检测当前上传文件大小是否合法。
if (!$this->checkSize($size)) {
$this->last_error = "这个文件的大小太大了. 您上传的文件名: ".$name;
$this->halt($this->last_error);
continue;
}
//检测当前上传文件扩展名是否合法。
if (!$this->checkuplod($type)) {
$this->last_error = "允许上传文件类型: .".$type." 您上传的文件名: ".$name;
$this->halt($this->last_error);
continue;
}
//检测当前上传文件是否非法提交。
if(!is_uploaded_file($tmpname)) {
$this->last_error = "文件非法提交. 您上传的文件名: ".$name;
$this->halt($this->last_error);
continue;
}
//移动文件后，重命名文件用。
$basename = $this->getBaseName($name, ".".$type);
//移动后的文件名
$saveas = $basename."-".time().".".$type;
//$saveas = $basename.".".$type;
//组合新文件名再存到指定目录下，格式：存储路径 + 文件名 + 时间 + 扩展名
$this->final_file_path = $this->save_file_path."/".$saveas;
if(!move_uploaded_file($tmpname, $this->final_file_path)) {
$this->last_error = $this->user_post_file['error'][$i];
$this->halt($this->last_error);
continue;
}
//存储当前文件的有关信息，以便其它程序调用。
$this->save_info[] = array("uname" => $uuname,"name" => $name, "type" => $type,
"mime_type" => $mime_type,
"size" => $size, "saveas" => $saveas,
"path" => $this->final_file_path);
}
}
return count($this->save_info); //返回上传成功的文件数目
}
/**
* 返回一些有用的信息，以便用于其它地方。
* @access public
* @return Array 返回最终保存的路径
*/
function getSaveInfo() {
return $this->save_info;
}
/**
* 检测用户提交文件大小是否合法
* @param Integer $size 用户上传文件的大小
* @access private
* @return boolean 如果为true说明大小合法，反之不合法
*/
function checkSize($size) {
if ($size > $this->max_file_size) {
return false;
}
else {
return true;
}
}
/**
* 检测用户提交文件类型是否合法
* @access private
* @return boolean 如果为true说明类型合法，反之不合法
*/
function checkType($extension) {
foreach ($this->allow_type as $type) {
//echo "<pre>";
//print_r($type);
//print_r($extension);
$str=substr($extension['name'][0],strrpos($extension['name'][0],'.')+1);
//echo $str;
//exit();
if (strcasecmp($str, $type) == 0)
return true;
}
return false;
}
function checkuplod($extension) {
foreach ($this->allow_type as $type) {
//echo "<pre>";
//print_r($type);
//print_r($extension);
//$str=substr($extension['name'][0],strrpos($extension['name'][0],'.')+1);
//echo $str;
//exit();
if (strcasecmp($extension, $type) == 0)
return true;
}
return false;
}
/**
* 显示出错信息
* @param $msg 要显示的出错信息
* @access private
*/
function halt($msg) {
printf("<b><UploadFile Error:></b> %s <br>\n", $msg);
exit();
}
/**
* 取文件扩展名
* @param String $filename 给定要取扩展名的文件
* @access private
* @return String 返回给定文件扩展名
*/
function getFileExt($filename) {
$stuff = pathinfo($filename);
return $stuff['extension'];
}
/**
* 取给定文件文件名，不包括扩展名。
* eg: getBaseName("j:/hexuzhong.jpg"); //返回 hexuzhong
*
* @param String $filename 给定要取文件名的文件
* @access private
* @return String 返回文件名
*/
function getBaseName($filename, $type) {
$basename = basename($filename, $type);
return $basename;
}
}
?>
调用和使用方法
$tmp=$Form;
require ('uploadCore.php');
//设置允许用户上传的文件类型。
$type = array('gif', 'jpg', 'png', 'zip', 'rar', 'txt');
//实例化上传类，第一个参数为用户上传的文件组、第二个参数为存储路径、
//第三个参数为文件最大大小。如果不填则默认为2M
//第四个参数为充许用户上传的类型数组。如果不填则默认为gif, jpg, png, zip, rar, txt, doc, pdf
$upload = new UploadFile($user_upload_file,$user_name, $pathy, 500000, $type);
//print"<pre>";
//print_r($upload);
//上传用户文件，返回int值，为上传成功的文件个数。
$num = $upload->upload();
if ($num != 0) {
//echo "上传成功<br>";
$jeff_upload_info=$upload->getSaveInfo();
//取得文件的有关信息，文件名、类型、大小、路径。用print_r()打印出来。
//print_r($jeff_upload_info['uname']);
//print"<pre>";
//print_r($jeff_upload_info);
//exit();
//格式为： Array
// (
// [0] => Array(
// [name] => example.txt
// [type] => txt
// [size] => 526
// [path] => j:/tmp/example-1108898806.txt
// )
// )
//获得文件保存路径或者其他的信息
for ($jeff_upload_success_num = 0; $jeff_upload_success_num < $num; $jeff_upload_success_num++)
{
$tmp['zz_upload_file'] = $jeff_upload_info[$jeff_upload_success_num]['uname'];
$tmp['zz_user_name'] = $jeff_upload_info[$jeff_upload_success_num]['name'];
$tmp['zz_user_uname'] = $jeff_upload_info[$jeff_upload_success_num]['saveas'];
$tmp['zz_size'] = $jeff_upload_info[$jeff_upload_success_num]['size'];
$tmp['zz_addtime'] = date("Y-m-d");
$tmp['zz_passtime'] = date("Y-m-d");
//print"<pre>";
//print_r($tmp);
$q_sql = data_insert($tmp,'hczb_zzwd');//插入数据库类
//print_r($q_sql);
//$jeff_upload_success_url = "\r\n".'[img]'.$jeff_upload_info[$jeff_upload_success_num]['path'].'[/img]';
//$jeff_upload_success_img .= $jeff_upload_success_url; //获得[img]代码
}
if($q_sql)
{
echo "<script>window.location.href='third.php';</script>";
$_SESSION['f'] = 3;
}
else
{
echo "<script>alert('sorry，操作失败');window.location.href='third.php';</script>";;
}
//echo $num."个文件上传成功";
}
else {
echo "<script>alert('sorry，上传失败，允许上传的格式是：'".$type."'');window.location.href='third.php';</script>";
}
表单调用:
<table width="91%" border="0" align="center" cellpadding="0" cellspacing="0" style="margin-top:12px;">
<tr>
<td valign="top" ><fieldset>
<legend><img src="images/third_11.jpg" /></legend>
<table width="98%" border="0" cellspacing="0" cellpadding="0" style="margin-top:12px;" align="center">
<tr>
<td class="tianjie"><table width="100%" border="0" cellspacing="0" cellpadding="0" >
<tr>
<td width="16%" align="center">附件序号 </td>
<td width="34%" align="center">附件名称 </td>
<td width="43%" align="center">附件说明</td>
<td width="7%" align="center"> </td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="0" >
<tr>
<td width="16%" align="center">附件一 </td>
<td width="38%" align="center"><input name="user_upload_file[]" type="file" class="bg" id="filename" size="16" /></td>
<td width="43%" align="center"><table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="10" align="right"><img src="images/input_l.gif" width="6" height="28" /></td>
<td width="120">
<input name="user_name[]" type="text" id="user_name" class="srk" size="35" onchange="clear_errors(document.all.dis_error_user_name,this);"/> </td>
<td width="9" align="left"><img src="images/input_r.gif" width="5" height="28" /></td>
</tr>
</table></td>
<td width="3%" align="center"> </td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="0" class="lx">
<tr>
<td width="16%" align="center">附件二 </td>
<td width="38%" align="center"><input name="user_upload_file[]" type="file" class="bg" id="filename" size="16" /></td>
<td width="43%" align="center"><table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="10" align="right"><img src="images/input_l.gif" width="6" height="28" /></td>
<td width="120">
<input name="user_name[]" type="text" id="user_name1" class="srk" size="35" onchange="clear_errors(document.all.dis_error_user_nameo,this);"/> </td>
<td width="9" align="left"><img src="images/input_r.gif" width="5" height="28" /></td>
</tr>
</table></td>
<td width="3%" align="center"> </td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="0" >
<tr>
<td width="16%" align="center">附件三 </td>
<td width="38%" align="center"><input name="user_upload_file[]" type="file" class="bg" id="filename" size="16" /></td>
<td width="43%" align="center"><table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="10" align="right"><img src="images/input_l.gif" width="6" height="28" /></td>
<td width="120">
<input name="user_name[]" type="text" id="user_name2" class="srk" size="35" onchange="clear_errors(document.all.dis_error_user_namet,this);"/> </td>
<td width="9" align="left"><img src="images/input_r.gif" width="5" height="28" /></td>
</tr>
</table></td>
<td width="3%" align="center"> </td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="0" style="margin:15px;">
<tr>
<td align="center"><input type="submit" name="sub" value=" " style="border:0px; width:166px; height:28px; background:url(images/third_19.jpg) no-repeat; cursor:hand" /></td>
</tr>
</table>
</td>
</tr>
</table>
</fieldset></td>
</tr>
</table>
有哪里不明白的 M我 告诉你
9. php安装的问题，无法载入 mysql 扩展，请检查 PHP 配置
首先你需要将PHP安装目录下的php_mysql.dll和php_mysqli.dll（我的在D:\apptools\php5\ext目录下）复制到c:\windows\system32目录下，然后修改php.ini文件（需要放到c:\windows目录下），关键是extension=php_mysql.dll 和extension_dir = "D:/apptools/php5/ext"。
我的配置是这样的：
[PHP]
;;;;;;;;;;;
; WARNING ;
;;;;;;;;;;;
; This is the default settings file for new PHP installations.
; By default, PHP installs itself with a configuration suitable for
; development purposes, and *NOT* for proction purposes.
; For several security-oriented considerations that should be taken
; before going online with your site, please consult php.ini-recommended
; and http://php.net/manual/en/security.php.
;;;;;;;;;;;;;;;;;;;
; About php.ini ;
;;;;;;;;;;;;;;;;;;;
; This file controls many aspects of PHP's behavior. In order for PHP to
; read it, it must be named 'php.ini'. PHP looks for it in the current
; working directory, in the path designated by the environment variable
; PHPRC, and in the path that was defined in compile time (in that order).
; Under Windows, the compile-time path is the Windows directory. The
; path in which the php.ini file is looked for can be overridden using
; the -c argument in command line mode.
;
; The syntax of the file is extremely simple. Whitespace and Lines
; beginning with a semicolon are silently ignored (as you probably guessed).
; Section headers (e.g. [Foo]) are also silently ignored, even though
; they might mean something in the future.
;
; Directives are specified using the following syntax:
; directive = value
; Directive names are *case sensitive* - foo=bar is different from FOO=bar.
;
; The value can be a string, a number, a PHP constant (e.g. E_ALL or M_PI), one
; of the INI constants (On, Off, True, False, Yes, No and None) or an expression
; (e.g. E_ALL & ~E_NOTICE), or a quoted string ("foo").
;
; Expressions in the INI file are limited to bitwise operators and parentheses:
; | bitwise OR
; & bitwise AND
; ~ bitwise NOT
; ! boolean NOT
;
; Boolean flags can be turned on using the values 1, On, True or Yes.
; They can be turned off using the values 0, Off, False or No.
;
; An empty string can be denoted by simply not writing anything after the equal
; sign, or by using the None keyword:
;
; foo = ; sets foo to an empty string
; foo = none ; sets foo to an empty string
; foo = "none" ; sets foo to the string 'none'
;
; If you use constants in your value, and these constants belong to a
; dynamically loaded extension (either a PHP extension or a Zend extension),
; you may only use these constants *after* the line that loads the extension.
;
;
;;;;;;;;;;;;;;;;;;;
; About this file ;
;;;;;;;;;;;;;;;;;;;
; All the values in the php.ini-dist file correspond to the builtin
; defaults (that is, if no php.ini is used, or if you delete these lines,
; the builtin defaults will be identical).
;;;;;;;;;;;;;;;;;;;;
; Language Options ;
;;;;;;;;;;;;;;;;;;;;
; Enable the PHP scripting language engine under Apache.
engine = On
; Enable compatibility mode with Zend Engine 1 (PHP 4.x)
zend.ze1_compatibility_mode = Off
; Allow the <? tag. Otherwise, only <?php and <script> tags are recognized.
; NOTE: Using short tags should be avoided when developing applications or
; libraries that are meant for redistribution, or deployment on PHP
; servers which are not under your control, because short tags may not
; be supported on the target server. For portable, redistributable code,
; be sure not to use short tags.
short_open_tag = On
; Allow ASP-style <% %> tags.
asp_tags = Off
; The number of significant digits displayed in floating point numbers.
precision = 12
; Enforce year 2000 compliance (will cause problems with non-compliant browsers)
y2k_compliance = On
; Output buffering allows you to send header lines (including cookies) even
; after you send body content, at the price of slowing PHP's output layer a
; bit. You can enable output buffering ring runtime by calling the output
; buffering functions. You can also enable output buffering for all files by
; setting this directive to On. If you wish to limit the size of the buffer
; to a certain size - you can use a maximum number of bytes instead of 'On', as
; a value for this directive (e.g., output_buffering=4096).
output_buffering = On
; You can redirect all of the output of your scripts to a function. For
; example, if you set output_handler to "mb_output_handler", character
; encoding will be transparently converted to the specified encoding.
; Setting any output handler automatically turns on output buffering.
; Note: People who wrote portable scripts should not depend on this ini
; directive. Instead, explicitly set the output handler using ob_start().
; Using this ini directive may cause problems unless you know what script
; is doing.
; Note: You cannot use both "mb_output_handler" with "ob_iconv_handler"
; and you cannot use both "ob_gzhandler" and "zlib.output_compression".
; Note: output_handler must be empty if this is set 'On' !!!!
; Instead you must use zlib.output_handler.
;output_handler =
; Transparent output compression using the zlib library
; Valid values for this option are 'off', 'on', or a specific buffer size
; to be used for compression (default is 4KB)
; Note: Resulting chunk size may vary e to nature of compression. PHP
; outputs chunks that are few hundreds bytes each as a result of
; compression. If you prefer a larger chunk size for better
; performance, enable output_buffering in addition.
; Note: You need to use zlib.output_handler instead of the standard
; output_handler, or otherwise the output will be corrupted.
zlib.output_compression = Off
; You cannot specify additional output handlers if zlib.output_compression
; is activated here. This setting does the same as output_handler but in
; a different order.
;zlib.output_handler =
; Implicit flush tells PHP to tell the output layer to flush itself
; automatically after every output block. This is equivalent to calling the
; PHP function flush() after each and every call to print() or echo() and each
; and every HTML block. Turning this option on has serious performance
; implications and is generally recommended for debugging purposes only.
implicit_flush = Off
; The unserialize callback function will be called (with the undefined class'
; name as parameter), if the unserializer finds an undefined class
; which should be instantiated.
; A warning appears if the specified function is not defined, or if the
; function doesn't include/implement the missing class.
; So only set this entry, if you really want to implement such a
; callback-function.
unserialize_callback_func=
; When floats & doubles are serialized store serialize_precision significant
; digits after the floating point. The default value ensures that when floats
; are decoded with unserialize, the data will remain the same.
serialize_precision = 100
; Whether to enable the ability to force arguments to be passed by reference
; at function call time. This method is deprecated and is likely to be
; unsupported in future versions of PHP/Zend. The encouraged method of
; specifying which arguments should be passed by reference is in the function
; declaration. You're encouraged to try and turn this option Off and make
; sure your scripts work properly with it in order to ensure they will work
; with future versions of the language (you will receive a warning each time
; you use this feature, and the argument will be passed by value instead of by
; reference).
allow_call_time_pass_reference = On
;
; Safe Mode
;
safe_mode = Off
; By default, Safe Mode does a UID compare check when
; opening files. If you want to relax this to a GID compare,
; then turn on safe_mode_gid.
safe_mode_gid = Off
; When safe_mode is on, UID/GID checks are bypassed when
; including files from this directory and its subdirectories.
; (directory must also be in include_path or full path must
; be used when including)
safe_mode_include_dir =
; When safe_mode is on, only executables located in the safe_mode_exec_dir
; will be allowed to be executed via the exec family of functions.
safe_mode_exec_dir =
; Setting certain environment variables may be a potential security breach.
; This directive contains a comma-delimited list of prefixes. In Safe Mode,
; the user may only alter environment variables whose names begin with the
; prefixes supplied here. By default, users will only be able to set
; environment variables that begin with PHP_ (e.g. PHP_FOO=BAR).
;
; Note: If this directive is empty, PHP will let the user modify ANY
; environment variable!
safe_mode_allowed_env_vars = PHP_
; This directive contains a comma-delimited list of environment variables that
; the end user won't be able to change using putenv(). These variables will be
; protected even if safe_mode_allowed_env_vars is set to allow to change them.
safe_mode_protected_env_vars = LD_LIBRARY_PATH
; open_basedir, if set, limits all file operations to the defined directory
; and below. This directive makes most sense if used in a per-directory
; or per-virtualhost web server configuration file. This directive is
; *NOT* affected by whether Safe Mode is turned On or Off.
;open_basedir =
; This directive allows you to disable certain functions for security reasons.
; It receives a comma-delimited list of function names. This directive is
; *NOT* affected by whether Safe Mode is turned On or Off.
disable_functions =
; This directive allows you to disable certain classes for security reasons.
; It receives a comma-delimited list of class names. This directive is
; *NOT* affected by whether Safe Mode is turned On or Off.
disable_classes =
; Colors for Syntax Highlighting mode. Anything that's acceptable in
; <span style="color: ???????"> would work.
;highlight.string = #DD0000
;highlight.comment = #FF9900
;highlight.keyword = #007700
;highlight.bg = #FFFFFF
;highlight.default = #0000BB
;highlight.html = #000000
; If enabled, the request will be allowed to complete even if the user aborts
; the request. Consider enabling it if executing long request, which may end up
; being interrupted by the user or a browser timing out.
; ignore_user_abort = On
;
; Misc
;
; Decides whether PHP may expose the fact that it is installed on the server
; (e.g. by adding its signature to the Web server header). It is no security
; threat in any way, but it makes it possible to determine whether you use PHP
; on your server or not.
expose_php = On
;;;;;;;;;;;;;;;;;;;
; Resource Limits ;
;;;;;;;;;;;;;;;;;;;
max_execution_time = 3000 ; Maximum execution time of each script, in seconds
max_input_time = 60 ; Maximum amount of time each script may spend parsing request data
memory_limit = 8M ; Maximum amount of memory a script may consume (8MB)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Error handling and logging ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; error_reporting is a bit-field. Or each number up to get desired error
; reporting level
; E_ALL - All errors and warnings (doesn't include E_STRICT)
; E_ERROR - fatal run-time errors
; E_WARNING - run-time warnings (non-fatal errors)
; E_PARSE - compile-time parse errors
; E_NOTICE - run-time notices (these are warnings which often result
; from a bug in your code, but it's possible that it was
; intentional (e.g., using an uninitialized variable and
; relying on the fact it's automatically initialized to an
; empty string)
; E_STRICT - run-time notices, enable to have PHP suggest changes
; to your code which will ensure the best interoperability
; and forward compatibility of your code
; E_CORE_ERROR - fatal errors that occur ring PHP's initial startup
; E_CORE_WARNING - warnings (non-fatal errors) that occur ring PHP's
; initial startup
; E_COMPILE_ERROR - fatal compile-time errors
; E_COMPILE_WARNING - compile-time warnings (non-fatal errors)
; E_USER_ERROR - user-generated error message
; E_USER_WARNING - user-generated warning message
; E_USER_NOTICE - user-generated notice message
;
; Examples:
;
; - Show all errors, except for notices and coding standards warnings
;
;error_reporting = E_ALL & ~E_NOTICE
;
; - Show all errors, except for notices
;
;error_reporting = E_ALL & ~E_NOTICE | E_STRICT
;
; - Show only errors
;
;error_reporting = E_COMPILE_ERROR|E_ERROR|E_CORE_ERROR
;
; - Show all errors except for notices and coding standards warnings
;
error_reporting = E_ALL & ~E_NOTICE
; Print out errors (as a part of the output). For proction web sites,
; you're strongly encouraged to turn this feature off, and use error logging
; instead (see below). Keeping display_errors enabled on a proction web site
; may reveal security information to end users, such as file paths on your Web
; server, your database schema or other information.
display_errors = On
; Even when display_errors is on, errors that occur ring PHP's startup
; sequence are not displayed. It's strongly recommended to keep
; display_startup_errors off, except for when debugging.
display_startup_errors = Off
; Log errors into a log file (server-specific log, stderr, or error_log (below))
; As stated above, you're strongly advised to use error logging in place of
; error displaying on proction web sites.
log_errors = Off
; Set maximum length of log_errors. In error_log information about the source is
; added. The default is 1024 and 0 allows to not apply any maximum length at all.
log_errors_max_len = 1024
; Do not log repeated messages. Repeated errors must occur in same file on same
; line until ignore_repeated_source is set true.
ignore_repeated_errors = Off
; Ignore source of message when ignoring repeated messages. When this setting
; is On you will not log errors with repeated messages from different files or
; sourcelines.
ignore_repeated_source = Off
; If this parameter is set to Off, then memory leaks will not be shown (on
; stdout or in the log). This has only effect in a debug compile, and if
; error reporting includes E_WARNING in the allowed list
report_memleaks = On
; Store the last error/warning message in $php_errormsg (boolean).
track_errors = Off
; Disable the inclusion of HTML tags in error messages.
; Note: Never use this feature for proction boxes.
;html_errors = Off
; If html_errors is set On PHP proces clickable error messages that direct
; to a page describing the error or function causing the error in detail.
; You can download a of the PHP manual from http://www.php.net/docs.php
; and change docref_root to the base URL of your local including the
; leading '/'. You must also specify the file extension being used including
; the dot.
; Note: Never use this feature for proction boxes.
;docref_root = "/phpmanual/"
;docref_ext = .html
; String to output before an error message.
;error_prepend_string = "<font color=ff0000>"
; String to output after an error message.
;error_append_string = "</font>"
; Log errors to specified file.
;error_log = filename
; Log errors to syslog (Event Log on NT, not valid in Windows 95).
;error_log = syslog
;;;;;;;;;;;;;;;;;
; Data Handling ;
;;;;;;;;;;;;;;;;;
;
; Note - track_vars is ALWAYS enabled as of PHP 4.0.3
; The separator used in PHP generated URLs to separate arguments.
; Default is "&".
;arg_separator.output = "&"
; List of separator(s) used by PHP to parse input URLs into variables.
; Default is "&".
; NOTE: Every character in this directive is considered as separator!
;arg_separator.input = ";&"
; This directive describes the order in which PHP registers GET, POST, Cookie,
; Environment and Built-in variables (G, P, C, E & S respectively, often
; referred to as EGPCS or GPC). Registration is done from left to right, newer
; values override older values.
variables_order = "EGPCS"
; Whether or not to register the EGPCS variables as global variables. You may
; want to turn this off if you don't want to clutter your scripts' global scope
; with user data. This makes most sense when coupled with track_vars - in which
; case you can access all of the GPC variables through the $HTTP_*_VARS[],
; variables.
;
; You should do your best to write your scripts so that they do not require
; register_globals to be on; Using form variables as globals can easily lead
; to possible security problems, if the code is not very well thought of.
register_globals = On
; Whether or not to register the old-style input arrays, HTTP_GET_VARS
; and friends. If you're not using them, it's recommended to turn them off,
; for performance reasons.
register_long_arrays = On
; This directive tells PHP whether to declare the argv&argc variables (that
; would contain the GET information). If you don't use these variables, you
; should turn it off for increased performance.
register_argc_argv = On
; When enabled, the SERVER and ENV variables are created when they're first
; used (Just In Time) instead of when the script starts. If these variables
; are not used within a script, having this directive on will result in a
; performance gain. The PHP directives register_globals, register_long_arrays,
; and register_argc_argv must be disabled for this directive to have any affect.
auto_globals_jit = On
; Maximum size of POST data that PHP will accept.
post_max_size = 8M
; Magic quotes
;
; Magic quotes for incoming GET/POST/Cookie data.
magic_quotes_gpc = On
; Magic quotes for runtime-generated data, e.g. data from SQL, from exec(), etc.
magic_quotes_runtime = Off
; Use Sybase-style magic quotes (escape ' with '' instead of \').
magic_quotes_sybase = Off
; Automatically add files before or after any PHP document.
auto_prepend_file =
auto_append_file =
; As of 4.0b4, PHP always outputs a character encoding by default in
; the Content-type: header. To disable sending of the charset, simply
; set it to be empty.
;
; PHP's built-in default is text/html
default_mimetype = "text/html"
;default_charset = "iso-8859-1"
; Always populate the $HTTP_RAW_POST_DATA variable.
;always_populate_raw_post_data = On
;;;;;;;;;;;;;;;;;;;;;;;;;
; Paths and Directories ;
;;;;;;;;;;;;;;;;;;;;;;;;;
; UNIX: "/path1:/path2"
;include_path = ".:/php/includes"
;
; Windows: "\path1;\path2"
include_path = ".;D:\apptools\php5\PEAR"
; The root of the PHP pages, used only if nonempty.
; if PHP was not compiled with FORCE_REDIRECT, you SHOULD set doc_root
; if you are running php as a CGI under any web server (other than IIS)
; see documentation for security issues. The alternate is to use the
; cgi.force_redirect configuration below
doc_root =
; The directory under which PHP opens the script using /~username used only
; if nonempty.
user_dir =
; Directory in which the loadable extensions (moles) reside.
extension_dir = "D:/apptools/php5/ext"
; Whether or not to enable the dl() function. The dl() function does NOT work
; properly in multithreaded servers, such as IIS or Zeus, and is automatically
; disabled on them.
enable_dl = On