- var_dump: documentation ( source)
- key: documentation ( source)
<?php
$a = [1,2,3,4,5,6,7,8,9];
foreach ($a as $key => &$value) {
if ($key === 4) {
unset($a[$key + 1]);
var_dump(key($a));
break;
}
}
var_dump(key($a));