phpmysqlinsertid
我也剛剛學PHP，正在研究中，雖然你只給10分........
首先，將代碼保存到一個文件，如：mysql.class.php
其次，在一個常用的文件里調用：比如頭部文件header.php,因為我放在根目錄所以用下面方式導入其他文件：
require dirname(__FILE__) . 'include/config.php';
//導入類文件
require dirname(__FILE__) . 'include/mysql.class.php';
//定義一個類及初始化資料庫類
$db = new mysql($db_host, $db_user, $db_pass, $db_name);
$db_host = $db_user = $db_pass = $db_name = NULL;
然後，在test.php文件調用：
require_once dirname(__FILE__) . '/header.php';
使用方法：
$sql = "讀取表";
$res = $db->query($sql);
$info = array();//定義數組
while($row=$db->fetchRow($res))
{
$arr['id'] = $row['id'];
$arr['title'] = $row['title'];
$info[] = $arr;
}
可以在顯示的地方用：
foreach($info as $i)
{
echo $i['title']."<br />";
}
或是直接使用while
還用另一種調用方式：
$here_area = $db->getRow("select areaid,areaname from {$table}area where areaid='$areaid'");
$here[] = array('name'=>$here_area['areaname'],'id'=>$here_area['areaid']);
測試通過，因為我正在使用.....................................
config.php代碼：
<?php
$db_host = "localhost";
$db_name = "test";
$db_user = "root";
$db_pass = "";
$table = "mini_";
$charset = "gb2312";
$dbcharset = "gbk";
?>
mysql.class.php代碼：
<?php
class mysql
{
var $link = NULL;
//自動執行__construct php5類構建方法，如果PHP4和PHP5同時使用會自動使用PHP5的方法
function __construct($dbhost, $dbuser, $dbpw, $dbname = '', $pconnect = 0, $quiet = 0)
{
//自動執行時調用mysql函數
$this->mysql($dbhost, $dbuser, $dbpw, $dbname, $pconnect, $quiet);
}
//php4類構建方法，如果沒有 __construct 就自動執行此功能
function mysql($dbhost, $dbuser, $dbpw, $dbname = '', $pconnect = 0, $quiet = 0)
{
if ($quiet)
{
$this->connect($dbhost, $dbuser, $dbpw, $dbname, $pconnect, $quiet);
}
else
{
$this->settings = array(
'dbhost' => $dbhost,
'dbuser' => $dbuser,
'dbpw' => $dbpw,
'dbname' => $dbname,
'charset' => $charset,
'pconnect' => $pconnect
);
}
}
function connect($dbhost, $dbuser, $dbpw, $dbname = '', $pconnect = 0, $quiet = 0)
{
global $dbcharset;
if ($pconnect)
{
if (!($this->link = @mysql_pconnect($dbhost, $dbuser, $dbpw)))
{
if (!$quiet)
{
$this->ErrorMsg("Can't pConnect MySQL Server($dbhost)!");
}
return false;
}
}
else
{
if (PHP_VERSION >= '4.2')
{
$this->link = @mysql_connect($dbhost, $dbuser, $dbpw, true);
}
else
{
$this->link = @mysql_connect($dbhost, $dbuser, $dbpw);
mt_srand((double)microtime() * 1000000);
}
if (!$this->link)
{
if (!$quiet)
{
$this->ErrorMsg("Can't Connect MySQL Server($dbhost)!");
}
return false;
}
}
$this->dbhash = md5($this->root_path . $dbhost . $dbuser . $dbpw . $dbname);
$this->version = mysql_get_server_info($this->link);
if ($this->version > '4.1')
{
if ($dbcharset != 'latin1')
{
mysql_query("SET character_set_connection=$dbcharset, character_set_results=$dbcharset, character_set_client=binary", $this->link);
}
if ($this->version > '5.0.1')
{
mysql_query("SET sql_mode=''", $this->link);
}
}
if ($dbname)
{
if (mysql_select_db($dbname, $this->link) === false )
{
if (!$quiet)
{
$this->ErrorMsg("Can't select MySQL database($dbname)!");
}
return false;
}
else
{
return true;
}
}
else
{
return true;
}
}
function query($sql, $type = '')
{
if ($this->link === NULL)
{
$this->connect($this->settings['dbhost'], $this->settings['dbuser'], $this->settings['dbpw'], $this->settings['dbname'], $this->settings['charset'], $this->settings['pconnect']);
$this->settings = array();
}
if ($this->queryCount++ <= 99)
{
$this->queryLog[] = $sql;
}
if ($this->queryTime == '')
{
if (PHP_VERSION >= '5.0.0')
{
$this->queryTime = microtime(true);
}
else
{
$this->queryTime = microtime();
}
}
if (!($query = mysql_query($sql, $this->link)) && $type != 'SILENT')
{
$this->error_message[]['message'] = 'MySQL Query Error';
$this->error_message[]['sql'] = $sql;
$this->error_message[]['error'] = mysql_error($this->link);
$this->error_message[]['errno'] = mysql_errno($this->link);
$this->ErrorMsg();
return false;
}
return $query;
}
function affected_rows()
{
return mysql_affected_rows($this->link);
}
function num_fields($query)
{
return mysql_num_fields($query);
}
function error()
{
return mysql_error($this->link);
}
function errno()
{
return mysql_errno($this->link);
}
function num_rows($query)
{
return mysql_num_rows($query);
}
function insert_id()
{
return mysql_insert_id($this->link);
}
function fetchRow($query)
{
return mysql_fetch_assoc($query);
}
function fetcharray($query)
{
return mysql_fetch_array($query);
}
function version()
{
return $this->version;
}
function close()
{
return mysql_close($this->link);
}
function ErrorMsg($message = '', $sql = '')
{
if ($message)
{
echo "$message\n\n";
}
else
{
echo "<b>MySQL server error report:";
print_r($this->error_message);
}
exit;
}
function getCol($sql)
{
$res = $this->query($sql);
if ($res !== false)
{
$arr = array();
while ($row = mysql_fetch_row($res))
{
$arr[] = $row[0];
}
return $arr;
}
else
{
return false;
}
}
function getOne($sql, $limited = false)
{
if ($limited == true)
{
$sql = trim($sql . ' LIMIT 1');
}
$res = $this->query($sql);
if ($res !== false)
{
$row = mysql_fetch_row($res);
if ($row !== false)
{
return $row[0];
}
else
{
return '';
}
}
else
{
return false;
}
}
function getAll($sql)
{
$res = $this->query($sql);
if ($res !== false)
{
$arr = array();
while ($row = mysql_fetch_assoc($res))
{
$arr[] = $row;
}
return $arr;
}
else
{
return false;
}
}
//使用： getRow($sql,true) 如果有true那值是 limit 1,讀取一條信息
function getRow($sql, $limited = false)
{
if ($limited == true)
{
$sql = trim($sql . ' LIMIT 1');
}
$res = $this->query($sql);
if ($res !== false)
{
return mysql_fetch_assoc($res);
}
else
{
return false;
}
}
}
?>
Ⅱ PHP+MYSQL 插入第一條數據。怎麼得到它自增的ID 在根據這個ID插入另一條數據。。
使用 PHP mysql_insert_id() 函數
定義和用法
mysql_insert_id() 函數返回仔彎上一步 INSERT 操作產生的 ID。
如果上一查詢沒有產生 AUTO_INCREMENT 的 ID，則 mysql_insert_id() 返回 0。
語法
mysql_insert_id(connection)
例子
<?php
$con = mysql_connect("localhost", "hello", "321"念山悶);
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
$db_selected = mysql_select_db("test_db",$con);
$sql = "INSERT INTO person VALUES ('Carter','Thomas','Beijing')"唯耐;
$result = mysql_query($sql,$con);
echo "ID of last inserted record is: " . mysql_insert_id();
mysql_close($con);
?>
Ⅲ php執行mysql語句返回如何處理
<?phpclass mysql{private $db_host; //資料庫主機private $db_user;
//資料庫用戶名private $db_pwd; //資料庫用戶名密碼private $db_database;
//資料庫名private $conn; //資料庫連接標識;private $result;
//執行query命令的結果資源標識private $sql; //sql執行語句private $row;
//返回的條目數private $coding; //資料庫編碼，GBK,UTF8,gb2312private $bulletin =
true; //是否開啟錯誤記錄private $show_error = true;
//測試階段，顯示所有錯誤,具有安全隱患,默認關閉private $is_error = false;
//發現錯誤是否立即終止,默認true,建議不啟用，因為當有問題時用戶什麼也看不到是很苦惱的/*構造函數*/public function
__construct($db_host,$db_user,$db_pwd,$db_database,$conn,$coding){$this->db_host=$db_host;$this->db_user=$db_user;$this->db_pwd
=
$db_pwd;$this->db_database=$db_database;$this->conn=$conn;$this-&
gt;coding=$coding;$this->connect();}/*資料庫連接*/ public
function
connect(){if($this->conn=="pconn"){//永久鏈接$this->
conn=mysql_pconnect($this->db_host,$this->db_user,$this->
db_pwd);}else{//即使鏈接$this->conn=mysql_connect($this->
db_host,$this->db_user,$this->db_pwd);}if(!mysql_select_db($this->db_database,$this->conn))
{if($this->show_error){$this->show_error("資料庫不可
用：",$this->db_database);}}mysql_query("SET NAMES
$this->coding");}/*資料庫執行語句，可執行查詢添加修改刪除等任何sql語句*/public function
query($sql){ if($sql ==
""){$this->show_error("sql語句錯誤：","sql查詢語句為空");}$this->sql =
$sql;$result =
mysql_query($this->sql,$this->conn);if(!$result){//調試中使用，sql語句出錯時會
自動列印出來if($this->show_error){$this->show_error("錯誤sql語
句：",$this->sql);}}else{$this->result = $result;}return
$this->result; }/*創建添加新的資料庫*/public function
create_database($database_name){$database=$database_name;$sqlDatabase =
'create database
'.$database;$this->query($sqlDatabase);}/*查詢伺服器所有資料庫*///將系統資料庫與用戶資料庫分
開，更直觀的顯示？public function show_databases(){$this->query("show
databases");echo "現有資料庫：".$amount =$this->db_num_rows($rs);echo
"<br />";$i=1;while($row = $this->fetch_array($rs)){ echo "$i
$row[Database]"; echo "<br />";$i++;}}//以數組形式返回主機中所有資料庫名public
function
databases(){$rsPtr=mysql_list_dbs($this->conn);$i=0;$cnt=mysql_num_rows($rsPtr);while($i<$cnt){$rs[]=mysql_db_name($rsPtr,$i);$i++;}return
$rs;}/*查詢資料庫下所有的表*/function
show_tables($database_name){$this->query("show tables");echo
"現有資料庫：".$amount = $this->db_num_rows($rs);echo "<br
/>";$i=1;while($row =
$this->fetch_array($rs)){$columnName="Tables_in_".$database_name;echo
"$i $row[$columnName]";echo "<br
/>";$i++;}}/*mysql_fetch_row() array
$row[0],$row[1],$row[2]mysql_fetch_array() array $row[0] 或
$row[id]mysql_fetch_assoc() array 用$row->content
欄位大小寫敏感mysql_fetch_object() object 用$row[id],$row[content]
欄位大小寫敏感*//*取得結果數據*/public function mysql_result_li(){return
mysql_result($str);}/*取得記錄集,獲取數組-索引和關聯,使用$row['content'] */public
function fetch_array(){ return
mysql_fetch_array($this->result);}//獲取關聯數組,使用$row['欄位名']public
function fetch_assoc(){return
mysql_fetch_assoc($this->result);} //獲取數字索引數組,使
用$row[0],$row[1],$row[2]public function fetch_row(){return
mysql_fetch_row($this->result);}//獲取對象數組,使用$row->contentpublic
function fetch_Object(){return
mysql_fetch_object($this->result);}//簡化查詢selectpublic function
findall($table){$this->query("SELECT * FROM
$table");}//簡化查詢selectpublic function
select($table,$columnName,$condition){if($columnName==""){$columnName="*";}$this->query("SELECT
$columnName FROM $table where $condition");}//簡化刪除delpublic function
delete($table,$condition){$this->query("DELETE FROM $table WHERE
$condition");}//簡化插入insertpublic function
insert($table,$columnName,$value){$this->query("INSERT INTO $table
($columnName) VALUES ($value)");}//簡化修改updatepublic function
update($table,$mod_content,$condition){$this->query("UPDATE $table
SET $mod_content WHERE $condition");}/*取得上一步 INSERT 操作產生的 ID*/public
function insert_id(){return mysql_insert_id();}//指向確定的一條數據記錄public
function
db_data_seek($id){if($id>0){$id=$id-1;}if(!@mysql_data_seek($this-&
gt;result,$id)){$this->show_error("sql語句有誤：", "指定的數據為空"); }return
$this->result;}// 根據select查詢結果計算結果集條數public function
db_num_rows(){if($this->result==null){if($this->show_error)
{$this->show_error("sql語句錯誤","暫時為空，沒有任何內容！");} }else{return
mysql_num_rows($this->result);}}//
根據insert,update,delete執行結果取得影響行數public function
db_affected_rows(){return mysql_affected_rows();}//輸出顯示sql語句public
function show_error($message="",$sql=""){if(!$sql){echo "<font
color='red'>".$message."</font>";echo "<br />";}else{echo
"<fieldset>";echo "<legend>錯誤信息提示:</legend><br
/>";echo "<div style='font-size:14px; clear:both;
font-family:Verdana, Arial, Helvetica, sans-serif;'>";echo "<div
style='height:20px; background:#000000; border:1px #000000
solid'>";echo "<font color='white'>錯誤號：12142</font>";echo
"</div><br />"; echo "錯誤原因：".mysql_error()."<br
/><br />";echo "<div style='height:20px; background:#FF0000;
border:1px #FF0000 solid'>";echo "<font
color='white'>".$message."</font>";echo "</div>";echo
"<font
color='red'><pre>".$sql."</pre></font>";$ip=$this->getip(); if($this->bulletin){$time
= date("Y-m-d
H:i:s");$message=$message."\r\n$this->sql"."\r\n客戶IP:$ip"."\r\n時間
:$time"."\r\n\r\n";$server_date=date("Y-m-
d");$filename=$server_date.".txt";$file_path="error/".$filename;$error_content=$message;
//$error_content="錯誤的資料庫，不可以鏈接";$file = "error";
//設置文件保存目錄//建立文件夾if(!file_exists($file)){if(!mkdir($file,0777)){//默認的
mode 是 0777，意味著最大可能的訪問權die("upload files directory does not exist and
creation failed");}}//建立txt日期文件if(!file_exists($file_path)){//echo
"建立日期文件";fopen($file_path,"w+");//首先要確定文件存在並且可寫if
(is_writable($file_path)){//使用添加模式打開$filename，文件指針將會在文件的開頭if (!$handle =
fopen($file_path, 'a')){echo "不能打開文件
$filename";exit;}//將$somecontent寫入到我們打開的文件中。if (!fwrite($handle,
$error_content)){echo "不能寫入到文件 $filename";exit;}//echo "文件 $filename
寫入成功";echo "——錯誤記錄被保存!";//關閉文件fclose($handle);} else {echo "文件 $filename
不可寫";}}else{//首先要確定文件存在並且可寫if
(is_writable($file_path)){//使用添加模式打開$filename，文件指針將會在文件的開頭if (!$handle =
fopen($file_path, 'a')){echo "不能打開文件
$filename";exit;}//將$somecontent寫入到我們打開的文件中。if (!fwrite($handle,
$error_content)){echo "不能寫入到文件 $filename";exit;}//echo "文件 $filename
寫入成功";echo "——錯誤記錄被保存!";//關閉文件fclose($handle);} else {echo "文件 $filename
不可寫";}}}echo "<br />";if($this->is_error){exit;}}echo
"</div>";echo "</fieldset>";echo "<br
/>";}//釋放結果集public function
free(){@mysql_free_result($this->result);}//資料庫選擇public function
select_db($db_database){return
mysql_select_db($db_database);}//查詢欄位數量public function
num_fields($table_name){//return
mysql_num_fields($this->result);$this->query("select * from
$table_name");echo "<br />";echo "欄位數：".$total =
mysql_num_fields($this->result);echo "<pre>";for ($i=0;
$i<$total; $i++){print_r(mysql_fetch_field($this->result,$i)
);}echo "</pre>";echo "<br />";}//取得 MySQL 伺服器信息public
function mysql_server($num=''){switch ($num){case 1 :return
mysql_get_server_info(); //MySQL 伺服器信息break;case 2 :return
mysql_get_host_info(); //取得 MySQL 主機信息break;case 3 :return
mysql_get_client_info(); //取得 MySQL 客戶端信息break;case 4 :return
mysql_get_proto_info(); //取得 MySQL 協議信息break;default:return
mysql_get_client_info(); //默認取得mysql版本信息}}//析構函數，自動關閉資料庫,垃圾回收機制public
function
__destruct(){if(!empty($this->result)){$this->free();}mysql_close($this->conn);}//function
__destruct();/*獲得客戶端真實的IP地址*/function
getip(){if(getenv("HTTP_CLIENT_IP") &&
strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")){$ip =
getenv("HTTP_CLIENT_IP");}else if (getenv("HTTP_X_FORWARDED_FOR")
&& strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")){$ip =
getenv("HTTP_X_FORWARDED_FOR");}else if (getenv("REMOTE_ADDR")
&& strcasecmp(getenv("REMOTE_ADDR"), "unknown")){$ip =
getenv("REMOTE_ADDR");}else if (isset($_SERVER['REMOTE_ADDR'])
&& $_SERVER['REMOTE_ADDR'] &&
strcasecmp($_SERVER['REMOTE_ADDR'], "unknown")){$ip =
$_SERVER['REMOTE_ADDR'];}else{$ip = "unknown"; }return($ip);}}?>