- substr: documentation ( source)
- var_dump: documentation ( source)
- trim: documentation ( source)
- strrpos: documentation ( source)
<?php
$foo = 'straat 1 2';
$lastPos = strrpos($foo, ' ');
var_dump([
'start' => trim(substr($foo, 0, $lastPos)),
'end' => trim(substr($foo, -$lastPos)),
]);