知识大全如何利用PHP执行.SQL文件

Posted 2022-07-21 文件

篇首语：冲天香阵透长安，满城尽带黄金甲。本文由小常识网(cha138.com)小编为大家整理，主要介绍了知识大全如何利用PHP执行.SQL文件相关的知识，希望对你有一定的参考价值。

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本篇文章是对使用PHP执行 SQL文件的实现代码进行了详细的分析介绍需要的朋友参考下

　　demo php:

复制代码代码如下: <?php /** * 读取 sql 文件并写入数据库 * @version 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 = $menter = array( # )) //判断文件是否存在 if(!file_exists($sqlPath)) return false; $handle = fopen($sqlPath rb ); $sqlStr = fread($handle filesize($sqlPath)); //通过sql语法的语句分割符进行分割 $segment = explode(";" trim($sqlStr)); //var_dump($segment); //去掉注释和多余的空行 foreach($segment as & $statement) $sentence = explode("/n" $statement); $newStatement = array(); foreach($sentence as $subSentence) if( != trim($subSentence)) //判断是会否是注释 $isComment = false; foreach($menter as $er) if(eregi("^(" $er ")" trim($subSentence))) $isComment = true; break; //如果不是注释则认为是sql语句 if(!$isComment) $newStatement[] = $subSentence; $statement = $newStatement; //对表名加前缀 if( != $prefix) //只有表名在第一行出现时才有效例如 CREATE TABLE talbeName $regxTable = "^[/`/ /"] [/_a zA Z]+[/_a zA Z ]*[/`/ /"] $";//处理表名的正则表达式 $regxLeftWall = "^[/`/ /"] "; $sqlFlagTree = array( "CREATE" => array( "TABLE" => array( "$regxTable" => ) ) "INSERT" => array( "INTO" => array( "$regxTable" => ) ) ); foreach($segment as & $statement) $tokens = split(" " $statement[ ]); $tableName = array(); $this >findTableName($sqlFlagTree $tokens $tableName); if(empty($tableName[ leftWall ])) $newTableName = $prefix $tableName[ name ]; else $newTableName = $tableName[ leftWall ] $prefix substr($tableName[ name ] ); $statement[ ] = str_replace($tableName[ name ] $newTableName $statement[ ]); //组合sql语句 foreach($segment as & $statement) $newStmt = ; foreach($statement as $sentence) $newStmt = $newStmt trim($sentence) "/n"; $statement = $newStmt; //用于测试 //var_dump($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= & $tableName = array()) $regxLeftWall = "^[/`/ /"] "; if(count($tokens)<=$tokensKey) return false; if( == trim($tokens[$tokensKey])) return self::findTableName($sqlFlagTree $tokens $tokensKey+ $tableName); else foreach($sqlFlagTree as $flag => $v) if(eregi($flag $tokens[$tokensKey])) if( ==$v) $tableName[ name ] = $tokens[$tokensKey]; if(eregi($regxLeftWall $tableName[ name ])) $tableName[ leftWall ] = $tableName[ name ] ; return true; else return self::findTableName($v $tokens $tokensKey+ & $tableName); return false; function writeArrayToFile($fileName $dataArray $delimiter="/r/n") $handle=fopen($fileName "wb"); $text = ; foreach($dataArray as $data) $text = $text $data $delimiter; fwrite($handle $text); //测试 $dbM = new DBManager( localhost w f test ); $dbM >createFromFile( data sql null fff_ ); ?> cha138/Article/program/PHP/201311/21281

知识大全 如何利用PHP执行.SQL文件

知识大全如何利用PHP执行.SQL文件