PHP code to delete records and delete image files at the same time

/**
* When deleting records, picture files will also be deleted
* by bbs.it-home.org
*/
$cn = mysql_connect('127.0.0.1','root','root') or die('database connect fail');
mysql_select_db ('test',$cn);
mysql_query("set names 'gbk'");
/*
Create database tutorial
CREATE DATABASE `test`;
Create data table test1
CREATE TABLE `test`.`test1` (
`id` INT( 4 ) NOT NULL AUTO_INCREMENT ,
`title` VARCHAR( 40 ) NULL DEFAULT '0',
`litpic` VARCHAR( 100 ) NULL DEFAULT '0',
PRIMARY KEY ( `id` )
 ) ENGINE = MYISAM
*/
$sql = "Select * from test1 ";
$query = mysql_query( $sql ) or die($sql);
if( mysql_num_rows( $query ) )
{
while( $rs = mysql_fetch_array( $query ) )
{
$sql = "Delete from test1 where id=".$rs['id'];
if( mysql_query( $sql ) )
{
if( defile( $rs[' litpic'] ))
{
echo 'Failed to delete picture file';
}
else
{
echo 'The record was deleted successfully, and the record and the corresponding picture or file were deleted';
}
}
else
{
echo 'Record not saved, failed to delete data and pictures';
}
}
}
else
{
echo 'No record';
}
/*
@pare return
#$url string
Delete file
*/
function delfile($url)
{
if( file_exists($url) && is_file( $url ) )
{
if( unlink( $url ) )
{
return true;
}
else
{
return false ;
}
}
else
{
return false;
}
}

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