本篇文章是對使用PHP執行.SQL文件的實現代碼進行了詳細的分析介紹，需要的朋友參考下
demo.php:
復制代碼 代碼如下:
<?php
/**
* 讀取 sql 文件並寫入數據庫
* @version 1.01 demo.php
*/
class DBManager
{
var $dbHost = '';
var $dbUser = '';
var $dbPassword = '';
var $dbSchema = '';
function __construct($host,$user,$password,$schema)
{
$this->dbHost = $host;
$this->dbUser = $user;
$this->dbPassword = $password;
$this->dbSchema = $schema;
}
function createFromFile($sqlPath,$delimiter = '(;/n)|((;/r/n))|(;/r)',$prefix = '',$commenter = array('#','--'))
{
//判斷文件是否存在
if(!file_exists($sqlPath))
return false;
$handle = fopen($sqlPath,'rb');
$sqlStr = fread($handle,filesize($sqlPath));
//通過sql語法的語句分割符進行分割
$segment = explode(";",trim($sqlStr));
//var_dump($segment);
//去掉注釋和多余的空行
foreach($segment as & $statement)
{
$sentence = explode("/n",$statement);
$newStatement = array();
foreach($sentence as $subSentence)
{
if('' != trim($subSentence))
{
//判斷是會否是注釋
$isComment = false;
foreach($commenter as $comer)
{
if(eregi("^(".$comer.")",trim($subSentence)))
{
$isComment = true;
break;
}
}
//如果不是注釋，則認為是sql語句
if(!$isComment)
$newStatement[] = $subSentence;
}
}
$statement = $newStatement;
}
//對表名加前綴
if('' != $prefix)
{
//只有表名在第一行出現時才有效 例如 CREATE TABLE talbeName
$regxTable = "^[/`/'/"]{0,1}[/_a-zA-Z]+[/_a-zA-Z0-9]*[/`/'/"]{0,1}$";//處理表名的正則表達式
$regxLeftWall = "^[/`/'/"]{1}";
$sqlFlagTree = array(
"CREATE" => array(
"TABLE" => array(
"$regxTable" => 0
)
),
"INSERT" => array(
"INTO" => array(
"$regxTable" => 0
)
)
);
foreach($segment as & $statement)
{
$tokens = split(" ",$statement[0]);
$tableName = array();
$this->findTableName($sqlFlagTree,$tokens,0,$tableName);
if(empty($tableName['leftWall']))
{
$newTableName = $prefix.$tableName['name'];
}
else{
$newTableName = $tableName['leftWall'].$prefix.substr($tableName['name'],1);
}
$statement[0] = str_replace($tableName['name'],$newTableName,$statement[0]);
}
}
//組合sql語句
foreach($segment as & $statement)
{
$newStmt = '';
foreach($statement as $sentence)
{
$newStmt = $newStmt.trim($sentence)."/n";
}
$statement = $newStmt;
}
//用於測試------------------------
//var_dump($segment);
//writeArrayToFile('data.txt',$segment);
//-------------------------------
self::saveByQuery($segment);
return true;
}
private function saveByQuery($sqlArray)
{
$conn = mysql_connect($this->dbHost,$this->dbUser,$this->dbPassword);
mysql_select_db($this->dbSchema);
foreach($sqlArray as $sql)
{
mysql_query($sql);
}
mysql_close($conn);
}
private function findTableName($sqlFlagTree,$tokens,$tokensKey=0,& $tableName = array())
{
$regxLeftWall = "^[/`/'/"]{1}";
if(count($tokens)<=$tokensKey)
return false;
if('' == trim($tokens[$tokensKey]))
{
return self::findTableName($sqlFlagTree,$tokens,$tokensKey+1,$tableName);
}
else
{
foreach($sqlFlagTree as $flag => $v)
{
if(eregi($flag,$tokens[$tokensKey]))
{
if(0==$v)
{
$tableName['name'] = $tokens[$tokensKey];
if(eregi($regxLeftWall,$tableName['name']))
{
$tableName['leftWall'] = $tableName['name']{0};
}
return true;
}
else{
return self::findTableName($v,$tokens,$tokensKey+1,& $tableName);
}
}
}
}
return false;
}
}
function writeArrayToFile($fileName,$dataArray,$delimiter="/r/n")
{
$handle=fopen($fileName, "wb");
$text = '';
foreach($dataArray as $data)
{
$text = $text.$data.$delimiter;
}
fwrite($handle,$text);
}
//測試
$dbM = new DBManager('localhost','w01f','123456','test');
$dbM->createFromFile('data.sql',null,'fff_');
?>
data.sql:
-- phpMyAdmin SQL Dump
-- version 2.11.3
-- http://www.phpmyadmin.net
--
-- 主機: localhost
-- 生成日期: 2008 年 08 月 20 日 12:09
-- 服務器版本: 5.0.51
-- PHP 版本: 5.2.5
SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";
--
-- 數據庫: `newysh`
--
-- --------------------------------------------------------
--
-- 表的結構 `allowed`
--
CREATE TABLE `allowed` (
`bhash` blob NOT NULL,
`bname` varchar(255) character set utf8 NOT NULL,
PRIMARY KEY (`bhash`(20))
) ENGINE=MyISAM DEFAULT CHARSET=gb2312 ROW_FORMAT=DYNAMIC;
--
-- 導出表中的數據 `allowed`
--
-- --------------------------------------------------------
--
-- 表的結構 `allowed_ex`
--
CREATE TABLE `allowed_ex` (
`bhash` blob NOT NULL,
`badded` datetime NOT NULL,
`bsize` bigint(20) unsigned NOT NULL,
`bfiles` int(10) unsigned NOT NULL,
PRIMARY KEY (`bhash`(20))
) ENGINE=MyISAM DEFAULT CHARSET=gb2312 ROW_FORMAT=DYNAMIC;
--
-- 導出表中的數據 `allowed_ex`
--
-- --------------------------------------------------------
--
-- 表的結構 `category`
--
CREATE TABLE `category` (
`cid` int(10) unsigned NOT NULL auto_increment COMMENT '種子分類id',
`name` varchar(255) NOT NULL COMMENT '分類名稱,支持html格式',
`sequence` int(10) unsigned NOT NULL COMMENT '顯示排序，需要小的排在前面',
PRIMARY KEY (`cid`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=26 ;
--
-- 導出表中的數據 `category`
--
INSERT INTO `category` (`cid`, `name`, `sequence`) VALUES
(25, '音樂', 23),
(24, '學習資料', 24),
(23, '電影', 25);
-----------------------------------------------------------
注:對於phpmyadmin 生成的sql文件均適用
