- sscanf: documentation ( source)
- var_export: documentation ( source)
<?php
$array = [
'foo' => 1,
//'show_me_120' => 'something',
'bar' => 42,
];
$showMeNumber = null;
foreach ($array as $k => $v) {
if (sscanf($k, 'show_me_%d',$showMeNumber)) {
break;
}
}
var_export($showMeNumber);