- var_dump: documentation ( source)
<?php
$ox = 10;
$oy = 10;
$x = 10;
$y = 15;
$sx = ($ox < $x)?1:-1;
$sy = ($oy < $y)?1:-1;
var_dump($sx,$sy);
//Test collisions for each cell along deplacement
for($dx = $ox+$sx; $sx*$dx <= $sx*$x; $dx += $sx){
for($dy = $oy+$sy; $sy*$dy <= $sy*$y; $dy += $sy){
var_dump(array($dx,$dy));
}
}