分享一个php实现MYSQL备份的类库
正好要研究如何备份数据库,分享一个php实现MYSQL备份的类库
<?php /****** 备份数据库结构 ******/ /****正好要研究如何备份数据库,分享一个php实现MYSQL备份的类库********/ /* 函数名称:table2sql() 函数功能:把表的结构转换成为SQL 函数参数:$table: 要进行提取的表名 返 回 值:返回提取后的结果,SQL集合 函数作者:heiyeluren */ function table2sql($table) { global $db; $tabledump = "DROP TABLE IF EXISTS $table;\n"; $createtable = $db->query("SHOW CREATE TABLE $table"); $create = $db->fetch_row($createtable); $tabledump .= $create[1].";\n\n"; return $tabledump; } /****** 备份数据库结构和所有数据 ******/ /* 函数名称:data2sql() 函数功能:把表的结构和数据转换成为SQL 函数参数:$table: 要进行提取的表名 返 回 值:返回提取后的结果,SQL集合 函数作者:heiyeluren */ function data2sql($table) { global $db; $tabledump = "DROP TABLE IF EXISTS $table;\n"; $createtable = $db->query("SHOW CREATE TABLE $table"); $create = $db->fetch_row($createtable); $tabledump .= $create[1].";\n\n"; $rows = $db->query("SELECT * FROM $table"); $numfields = $db->num_fields($rows); $numrows = $db->num_rows($rows); while ($row = $db->fetch_row($rows)) { $comma = ""; $tabledump .= "INSERT INTO $table VALUES("; for($i = 0; $i < $numfields; $i++) { $tabledump .= $comma."'".mysql_escape_string($row[$i])."'"; $comma = ","; } $tabledump .= ");\n"; } $tabledump .= "\n"; return $tabledump; } ?>
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