/** - * 读取 sql 文件并写入数据库
- * @version 1.01 demo.php
- * @author xingshaocheng
- * @edit: bbs.it-home.org
- */
- 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
- $isComment = false;
- foreach($commenter as $comer)
- {
- if(eregi("^(".$comer.")",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
-
- $regxTable = "^[\`\'\"]{0,1}[\_a-zA-Z]+[\_a-zA-Z0-9]*[\`\'\"]{0,1}$";//处理表名的正则表达式
- $regxLeftWall = "^[\`\'\"]发达";
-
- $sqlFlagTree = array(
- "CREATE" => array(
- "TABLE" => array(
- "$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]);
- }
-
- }
- //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=0,& $tableName = array())
- {
- $regxLeftWall = "^[\`\'\"]发达";
-
- if(count($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);
- }
//测试 - $dbM = new DBManager('localhost','w01f','123456','test');
- $dbM->createFromFile('data.sql',null,'fff_');
- ?>
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