account_delete function - #MySQL #Multiple row #deletion

account_delete.php

<?php
function account_delete($userid)
{
	$references=array(
		"id" => array("users"), // Do Not move this line
		"userid" => array(
			"blackjack","blocks","bookmarks"
			),
		"friendid" => array(
			"friends"
			),
		);
	$ctr=1;
	foreach($references as $field=>$tablelist)
	{
		foreach($tablelist as $table)
		{
			$tables[]=$tc="t{$ctr}";
			$joins[]=($ctr==1)?"users as {$tc}":"INNER JOIN {$table} as {$tc} on t0.id={$tc}.{$field}";
			$ctr++;
		}
	}
	return 'DELETE '. implode(', ',$tables) . " FROM " . implode(' ',$joins) . " WHERE t0.id='{$userid}';";
}

echo account_delete(256). PHP_EOL;

?>