note 127164 deleted from function.is-null by cmb
| From: | cmb@php.net | Date: | Thu, 09 Jun 2022 11:50:43 +0000 |
| Subject: | note 127164 deleted from function.is-null by cmb | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-218573@lists.php.net to get a copy of this message | ||
Note Submitter: greations at ghvernuft dot nl
----
<?php
$nullArr = [NULL, "", [], FALSE, 0];
echo "==<br/>";
foreach($nullArr as $sample){ var_dump( $sample == NULL ); echo "<br/>"; }
echo "===<br/>";
foreach($nullArr as $sample){ var_dump( $sample === NULL ); echo "<br/>"; }
echo "is_null<br/>";
foreach($nullArr as $sample){ var_dump( is_null( $sample )); echo "<br/>"; }
?>
gives
==
bool(true)
bool(true)
bool(true)
bool(true)
bool(true)
===
bool(true)
bool(false)
bool(false)
bool(false)
bool(false)
is_null
bool(true)
bool(false)
bool(false)
bool(false)
bool(false)