Bubble sort implementation in PHP? [duplicate]

Answer 1

Maybe someone finds useful my version of Bubble Sort:

function BubbleSort(&$L) 
{  
    $rm_key = count($L);
    while( --$rm_key > -1 )#after this the very first time it will point to the last element
        for($i=0; $i<$rm_key; $i++)
            if( $L[$i] > $L[$i+1] )
                list($L[$i],$L[$i+1]) = array($L[$i+1],$L[$i]);         
} 

I got the swap idea (using list) from above comment.