phpmysqlinsertid
我也刚刚学PHP，正在研究中，虽然你只给10分........
首先，将代码保存到一个文件，如：mysql.class.php
其次，在一个常用的文件里调用：比如头部文件header.php,因为我放在根目录所以用下面方式导入其他文件：
require dirname(__FILE__) . 'include/config.php';
//导入类文件
require dirname(__FILE__) . 'include/mysql.class.php';
//定义一个类及初始化数据库类
$db = new mysql($db_host, $db_user, $db_pass, $db_name);
$db_host = $db_user = $db_pass = $db_name = NULL;
然后，在test.php文件调用：
require_once dirname(__FILE__) . '/header.php';
使用方法：
$sql = "读取表";
$res = $db->query($sql);
$info = array();//定义数组
while($row=$db->fetchRow($res))
{
$arr['id'] = $row['id'];
$arr['title'] = $row['title'];
$info[] = $arr;
}
可以在显示的地方用：
foreach($info as $i)
{
echo $i['title']."<br />";
}
或是直接使用while
还用另一种调用方式：
$here_area = $db->getRow("select areaid,areaname from {$table}area where areaid='$areaid'");
$here[] = array('name'=>$here_area['areaname'],'id'=>$here_area['areaid']);
测试通过，因为我正在使用.....................................
config.php代码：
<?php
$db_host = "localhost";
$db_name = "test";
$db_user = "root";
$db_pass = "";
$table = "mini_";
$charset = "gb2312";
$dbcharset = "gbk";
?>
mysql.class.php代码：
<?php
class mysql
{
var $link = NULL;
//自动执行__construct php5类构建方法，如果PHP4和PHP5同时使用会自动使用PHP5的方法
function __construct($dbhost, $dbuser, $dbpw, $dbname = '', $pconnect = 0, $quiet = 0)
{
//自动执行时调用mysql函数
$this->mysql($dbhost, $dbuser, $dbpw, $dbname, $pconnect, $quiet);
}
//php4类构建方法，如果没有 __construct 就自动执行此功能
function mysql($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,读取一条信息
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 插入第一条数据。怎么得到它自增的ID 在根据这个ID插入另一条数据。。
使用 PHP mysql_insert_id() 函数
定义和用法
mysql_insert_id() 函数返回仔弯上一步 INSERT 操作产生的 ID。
如果上一查询没有产生 AUTO_INCREMENT 的 ID，则 mysql_insert_id() 返回 0。
语法
mysql_insert_id(connection)
例子
<?php
$con = mysql_connect("localhost", "hello", "321"念山闷);
if (!$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执行mysql语句返回如何处理
<?phpclass mysql{private $db_host; //数据库主机private $db_user;
//数据库用户名private $db_pwd; //数据库用户名密码private $db_database;
//数据库名private $conn; //数据库连接标识;private $result;
//执行query命令的结果资源标识private $sql; //sql执行语句private $row;
//返回的条目数private $coding; //数据库编码，GBK,UTF8,gb2312private $bulletin =
true; //是否开启错误记录private $show_error = true;
//测试阶段，显示所有错误,具有安全隐患,默认关闭private $is_error = false;
//发现错误是否立即终止,默认true,建议不启用，因为当有问题时用户什么也看不到是很苦恼的/*构造函数*/public function
__construct($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();}/*数据库连接*/ public
function
connect(){if($this->conn=="pconn"){//永久链接$this->
conn=mysql_pconnect($this->db_host,$this->db_user,$this->
db_pwd);}else{//即使链接$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){$this->show_error("数据库不可
用：",$this->db_database);}}mysql_query("SET NAMES
$this->coding");}/*数据库执行语句，可执行查询添加修改删除等任何sql语句*/public function
query($sql){ if($sql ==
""){$this->show_error("sql语句错误：","sql查询语句为空");}$this->sql =
$sql;$result =
mysql_query($this->sql,$this->conn);if(!$result){//调试中使用，sql语句出错时会
自动打印出来if($this->show_error){$this->show_error("错误sql语
句：",$this->sql);}}else{$this->result = $result;}return
$this->result; }/*创建添加新的数据库*/public function
create_database($database_name){$database=$database_name;$sqlDatabase =
'create database
'.$database;$this->query($sqlDatabase);}/*查询服务器所有数据库*///将系统数据库与用户数据库分
开，更直观的显示？public function show_databases(){$this->query("show
databases");echo "现有数据库：".$amount =$this->db_num_rows($rs);echo
"<br />";$i=1;while($row = $this->fetch_array($rs)){ echo "$i
$row[Database]"; echo "<br />";$i++;}}//以数组形式返回主机中所有数据库名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
$rs;}/*查询数据库下所有的表*/function
show_tables($database_name){$this->query("show tables");echo
"现有数据库：".$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
字段大小写敏感mysql_fetch_object() object 用$row[id],$row[content]
字段大小写敏感*//*取得结果数据*/public function mysql_result_li(){return
mysql_result($str);}/*取得记录集,获取数组-索引和关联,使用$row['content'] */public
function fetch_array(){ return
mysql_fetch_array($this->result);}//获取关联数组,使用$row['字段名']public
function fetch_assoc(){return
mysql_fetch_assoc($this->result);} //获取数字索引数组,使
用$row[0],$row[1],$row[2]public function fetch_row(){return
mysql_fetch_row($this->result);}//获取对象数组,使用$row->contentpublic
function fetch_Object(){return
mysql_fetch_object($this->result);}//简化查询selectpublic function
findall($table){$this->query("SELECT * FROM
$table");}//简化查询selectpublic function
select($table,$columnName,$condition){if($columnName==""){$columnName="*";}$this->query("SELECT
$columnName FROM $table where $condition");}//简化删除delpublic function
delete($table,$condition){$this->query("DELETE FROM $table WHERE
$condition");}//简化插入insertpublic function
insert($table,$columnName,$value){$this->query("INSERT INTO $table
($columnName) VALUES ($value)");}//简化修改updatepublic function
update($table,$mod_content,$condition){$this->query("UPDATE $table
SET $mod_content WHERE $condition");}/*取得上一步 INSERT 操作产生的 ID*/public
function insert_id(){return mysql_insert_id();}//指向确定的一条数据记录public
function
db_data_seek($id){if($id>0){$id=$id-1;}if(!@mysql_data_seek($this-&
gt;result,$id)){$this->show_error("sql语句有误：", "指定的数据为空"); }return
$this->result;}// 根据select查询结果计算结果集条数public function
db_num_rows(){if($this->result==null){if($this->show_error)
{$this->show_error("sql语句错误","暂时为空，没有任何内容！");} }else{return
mysql_num_rows($this->result);}}//
根据insert,update,delete执行结果取得影响行数public function
db_affected_rows(){return mysql_affected_rows();}//输出显示sql语句public
function show_error($message="",$sql=""){if(!$sql){echo "<font
color='red'>".$message."</font>";echo "<br />";}else{echo
"<fieldset>";echo "<legend>错误信息提示:</legend><br
/>";echo "<div style='font-size:14px; clear:both;
font-family:Verdana, Arial, Helvetica, sans-serif;'>";echo "<div
style='height:20px; background:#000000; border:1px #000000
solid'>";echo "<font color='white'>错误号：12142</font>";echo
"</div><br />"; echo "错误原因：".mysql_error()."<br
/><br />";echo "<div style='height:20px; background:#FF0000;
border:1px #FF0000 solid'>";echo "<font
color='white'>".$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客户IP:$ip"."\r\n时间
:$time"."\r\n\r\n";$server_date=date("Y-m-
d");$filename=$server_date.".txt";$file_path="error/".$filename;$error_content=$message;
//$error_content="错误的数据库，不可以链接";$file = "error";
//设置文件保存目录//建立文件夹if(!file_exists($file)){if(!mkdir($file,0777)){//默认的
mode 是 0777，意味着最大可能的访问权die("upload files directory does not exist and
creation failed");}}//建立txt日期文件if(!file_exists($file_path)){//echo
"建立日期文件";fopen($file_path,"w+");//首先要确定文件存在并且可写if
(is_writable($file_path)){//使用添加模式打开$filename，文件指针将会在文件的开头if (!$handle =
fopen($file_path, 'a')){echo "不能打开文件
$filename";exit;}//将$somecontent写入到我们打开的文件中。if (!fwrite($handle,
$error_content)){echo "不能写入到文件 $filename";exit;}//echo "文件 $filename
写入成功";echo "——错误记录被保存!";//关闭文件fclose($handle);} else {echo "文件 $filename
不可写";}}else{//首先要确定文件存在并且可写if
(is_writable($file_path)){//使用添加模式打开$filename，文件指针将会在文件的开头if (!$handle =
fopen($file_path, 'a')){echo "不能打开文件
$filename";exit;}//将$somecontent写入到我们打开的文件中。if (!fwrite($handle,
$error_content)){echo "不能写入到文件 $filename";exit;}//echo "文件 $filename
写入成功";echo "——错误记录被保存!";//关闭文件fclose($handle);} else {echo "文件 $filename
不可写";}}}echo "<br />";if($this->is_error){exit;}}echo
"</div>";echo "</fieldset>";echo "<br
/>";}//释放结果集public function
free(){@mysql_free_result($this->result);}//数据库选择public function
select_db($db_database){return
mysql_select_db($db_database);}//查询字段数量public function
num_fields($table_name){//return
mysql_num_fields($this->result);$this->query("select * from
$table_name");echo "<br />";echo "字段数：".$total =
mysql_num_fields($this->result);echo "<pre>";for ($i=0;
$i<$total; $i++){print_r(mysql_fetch_field($this->result,$i)
);}echo "</pre>";echo "<br />";}//取得 MySQL 服务器信息public
function mysql_server($num=''){switch ($num){case 1 :return
mysql_get_server_info(); //MySQL 服务器信息break;case 2 :return
mysql_get_host_info(); //取得 MySQL 主机信息break;case 3 :return
mysql_get_client_info(); //取得 MySQL 客户端信息break;case 4 :return
mysql_get_proto_info(); //取得 MySQL 协议信息break;default:return
mysql_get_client_info(); //默认取得mysql版本信息}}//析构函数，自动关闭数据库,垃圾回收机制public
function
__destruct(){if(!empty($this->result)){$this->free();}mysql_close($this->conn);}//function
__destruct();/*获得客户端真实的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);}}?>