1.2.1461. array_key_exists() Works On Arrays¶
array_key_exists() requires arrays as second argument. Until PHP 7.4, objects were also allowed, yet it is now deprecated.
<?php
// Valid way to check for key
$array = ['a' => 1];
var_dump(array_key_exists('a', $array))
// Deprecated since PHP 7.4
$object = new Stdclass();
$object->a = 1;
var_dump(array_key_exists('a', $object))
?>
See also array_key_exists() with objects and array_key_exists.
1.2.1461.1. Suggestions¶
Use the (array) cast to turn the object into an array
Use the native PHP function proprety_exists() or isset() on the property to check them.
1.2.1461.2. Specs¶
Short name |
Php/ArrayKeyExistsWithObjects |
Rulesets |
|
Exakat since |
1.9.0 |
PHP Version |
With PHP 7.4 and older |
Severity |
Minor |
Time To Fix |
Quick (30 mins) |
Precision |
High |
Features |
index, array |
Available in |