我不知道为什么我会收到这个错误。
这是我的代码的样子:
<?php ini_set('memory_limit', '1000M'); set_time_limit(0);
backup_tables('host','dbuser','password','dbname','dbtable');
function backup_tables($host,$user,$pass,$name,$tables = '*')
{
$link = mysql_connect($host,$user,$pass);
mysql_select_db($name,$link);
if($tables == '*') {
$tables = array();
$result = mysql_query('SHOW TABLES');
while($row = mysql_fetch_row($result)) {
$tables[] = $row[0];
}
} else {
$tables = is_array($tables) ? $tables : explode(',',$tables);
}
foreach($tables as $table) {
$result = mysql_query('SELECT * FROM '.$table);
$num_fields = mysql_num_fields($result);
$row2 = mysql_fetch_row(mysql_query('SHOW CREATE TABLE '.$table));
$return.= "\n\n".$row2[1].";\n\n";
for ($i = 0; $i < $num_fields; $i++) {
while($row = mysql_fetch_row($result)) {
$return.= 'INSERT INTO '.$table.' VALUES(';
for($j=0; $j<$num_fields; $j++) {
$row[$j] = addslashes($row[$j]);
$row[$j] = preg_replace("/\n/i", "\\n",$row[$j]);;
if (isset($row[$j])) {
$return.= '"'.$row[$j].'"' ;
} else {
$return.= '""';
}
if ($j<($num_fields-1)) {
$return.= ',';
}
}
$return.= ");\n";
}
}
$return.="\n\n\n";
}
$handle = fopen('db-backup-'.time().'-'.(md5(implode(',',$tables))).'.sql','w+');
fwrite($handle,$return); fclose($handle);
} ?>