note 117463 deleted from function.is-a by cmb
| From: | cmb@php.net | Date: | Thu, 03 Mar 2022 12:09:50 +0000 |
| Subject: | note 117463 deleted from function.is-a by cmb | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-217677@lists.php.net to get a copy of this message | ||
Note Submitter: portugal {at} jawira {dot} com
----
I just want to point out that you can replace "is_a()" function with the
"instanceof" operator, BUT you must use a variable to pass the class name string.
This will work:
<?php
$object = new \stdClass();
$class_name = '\stdClass';
var_dump(is_a($object, $class_name)); // bool(true)
var_dump(is_a($object, '\stdClass')); // bool(true)
var_dump($object instanceof $class_name); // bool(true)
?>
While this don't:
<?php
$object = new \stdClass();
var_dump($object instanceof '\stdClass'); // Parse error: syntax error, unexpected
''\stdClass'' (T_CONSTANT_ENCAPSED_STRING)
?>