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PHP备份数据库生成SQL文件并下载的函数代码_php技巧

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2016-05-17 09:12:391047browse
复制代码 代码如下:

/****** 备份数据库结构 ******/
/*
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].";nn";
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].";nn";
$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 {
$tabledump .= $comma."'".mysql_escape_string($row[$i])."'";
$comma = ",";
}
$tabledump .= ");n";
}
$tabledump .= "n";
return $tabledump;
}
?>
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