PHP in_array返回错误值

Question

Here is the one value that can not determine PHP in_array function. I think this is issue with value but why ? I am stuck.

"ZQjEa8EsL2kdHr2xD2jkoWj678FWsLL2Ng1tFjDV/Rgkt0CLiE4f+lvlYrdDjvq2"

PHP Example

<?php
    $id = "ZQjEa8EsL2kdHr2xD2jkoWj678FWsLL2Ng1tFjDV/Rgkt0CLiE4f+lvlYrdDjvq2";
    $array['selected_options']['12251_12754_3'][0] = 0;

    var_dump(in_array($id, $array['selected_options']['12251_12754_3']));
?>

Output

true

Try it online!

Question : Anybody knows why this happen or what I do instead ?

Answers much appriciated !

Answer 1

Searches for needle in haystack using loose comparison unless strict is set.

Append the third argument with true to get the result you need.

var_dump(in_array($id, $array['selected_options']['12251_12754_3'], true));

See documentation .