Php检查数组？

Question

我有一个只包含布尔值的数组:

 $l = array(0=>true,2=>false,3=>true,4=>true,5=>true);

我想实现这个伪代码:

If at least one element of $l is false:
    echo 'Can not do this';
else:
    echo 'Can do this';

Answer 1

$missing_permission = array_search(false, $l);
if($missing_permission !== false) {
    echo 'No way!';
} else {
    echo 'OK!';
}