note 116682 deleted from internals2.opcodes.instanceof by cmb
| From: | cmb@php.net | Date: | Sun, 10 Jan 2021 13:21:35 +0000 |
| Subject: | note 116682 deleted from internals2.opcodes.instanceof by cmb | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-216095@lists.php.net to get a copy of this message | ||
Note Submitter: admin at torntech dot com
----
Despite this section being opcode examples, for php 5.3+ see also is_a()
*Note php 5.0 - 5.2 is_a() was depreciated in favor of instanceof but was undepreciated in 5.3+.
Allows for string comparison against the class name and functions in the same manner as cody
mentions like so.
<?php
namespace Foo{
class Bar {}
class Baz extends Bar{}
}
namespace {
$baz = new Foo\Baz;
var_dump($baz instanceof Foo\Bar);
/* returns bool(true) */
var_dump(is_a($baz, 'Foo\\Bar'));
/* returns bool(true) */
var_dump($baz instanceof 'Foo\\Bar');
/* returns Runtime parse error */
}
?>