note 126306 added to migration70.new-features
| From: | cory' at main dot php dot net | Date: | Tue, 03 Aug 2021 16:55:32 +0000 |
| Subject: | note 126306 added to migration70.new-features | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-216737@lists.php.net to get a copy of this message | ||
peculiar behavior on null coalescing operator in an if statement
$x = array();
if ($x['b']??'n/a' === 'whatever') { // this is always true if
'b' does not exist
if (($x['b']??'n/a') === 'whatever') { // only true if
$x['b'] === 'whatever'
you probably want to wrap your null coalescing in parentheses for most cases. * same result with ==
and ===
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Manual Page -- https://php.net/manual/en/migration70.new-features.php
Edit -- https://main.php.net/note/edit/126306
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Del: useless -- https://main.php.net/note/delete/126306/useless
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Del: non-english -- https://main.php.net/note/delete/126306/non-english
Del: in docs -- https://main.php.net/note/delete/126306/in+docs
Del: other reasons-- https://main.php.net/note/delete/126306
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