PHP Backup Database class sharing, PHP backup Database _php Tutorial

Source: Internet
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PHP Backup Database class sharing, PHP backup database


PHP Backup Database class sharing

<?php/** * * @name PHP Backup DATABASE * @param string $DbHost Connect host * @param string $DbUser username * @param str  ing $DbPwd connection Password * @param string $DbName The database to be backed up * @param string $saveFileName The name of the file to be saved, the default file is saved in the current folder and is distinguished by date  * @return Null * @example backupmysqldata (' localhost ', ' root ', ' 123456 ', ' yourdbname '); * */function Backupmysqldata ($DbHost, $DbUser, $DBPWD, $DbName, $saveFileName = ') {Header ("content-type:text/htm    L;charset=utf-8 ");    error_reporting (0);    Set_time_limit (0); echo ' Data backup, please wait ...
'; $link = mysql_connect ($DbHost, $DbUser, $DbPwd) or Die (' Database connection failed: '. mysql_error ()); mysql_select_db ($DbName) or Die (' Database connection failed: '. mysql_error ()); mysql_query (' Set names UTF8 '); Declaring a variable $isDropInfo = '; $insertSQL = "; $row = Array (); $tables = Array (); $tableStructure = Array (); $fileName = ($saveFileName? $saveFileName: ' Mysql_data_bakeup_ '). Date (' Ymdhis '). '. SQL '; Enumerates all Tables $res = mysql_query ("SHOW TABLES from $DbName") of the database; while ($row = Mysql_fetch_row ($res)) {$tables [] = $row [0]; } mysql_free_result ($res); Enumerates creation statements for all tables foreach ($tables as $val) {$res = mysql_query ("Show create Table $val", $link); $row = Mysql_fetch_row ($res); $isDropInfo = "DROP TABLE IF EXISTS '". $val. "'; \ r \ n"; $tableStructure = $isDropInfo. $row [1]. "; \ r \ n"; File_put_contents ($fileName, $tableStructure, file_append); Mysql_free_result ($res); }//Enumerates the INSERT statements for all tables foreach ($tableS as $val) {$res = mysql_query ("SELECT * from $val"); Tables without data do not perform INSERT while ($row = Mysql_fetch_row ($res)) {$sqlStr = "INSERT into '". $val. " ' VALUES ('; foreach ($row as $v) {$sqlStr. = "' $v ',"; }//Remove the last comma $sqlStr = substr ($sqlStr, 0, strlen ($sqlStr)-1); $sqlStr. = "); \ r \ n"; File_put_contents ($fileName, $SQLSTR, file_append); } mysql_free_result ($res); } Echo ' data backup was successful! '; }//Call this method Backupmysqldata (' localhost ', ' root ', ' 123456 ', ' youdbname '); ?>

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