Req #75833 [Opn->Sus]: Improve null-coalescing operator (??) adding empty check (??:)

From: Date: Wed, 17 Jan 2018 13:36:53 +0000
Subject: Req #75833 [Opn->Sus]: Improve null-coalescing operator (??) adding empty check (??:)
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=75833&edit=1 ID: 75833 Updated by: requinix@php.net Reported by: lito at eordes dot com Summary: Improve null-coalescing operator (??) adding empty check (??:) -Status: Open +Status: Suspended Type: Feature/Change Request -Package: PHP Language Specification +Package: *General Issues Operating System: All PHP Version: Irrelevant Block user comment: N Private report: N New Comment: Thank you for your interest in PHP and for submitting a feature request. Please be aware that due to the magnitude of change this request requires, it would be necessary to discuss it on PHP Internals list (internals@lists.php.net) as an RFC. Please read the guide about creating RFCs here: <https://wiki.php.net/rfc/howto>. If you haven't had experience with writing RFCs before, it is advised to seek guidance on the Internals list (<http://php.net/mailing-lists.php>) and/or solicit help from one of the experienced developers. Please do not consider this comment as a negative view on the merits of your proposal – every proposal which requires changes of certain magnitude, even the very successful and widely supported ones, must be done through the RFC process. This helps make the process predictable, transparent and accessible to all developers. Previous Comments: ------------------------------------------------------------------------ [2018-01-17 13:28:35] lito at eordes dot com Description: ------------ From PHP 7 null-coalescing operator is a great option to avoid a previous exists check with isset. But I think that this comaparison can be improved adding a ternary operator like ??: and check also empty values. Check example into text script section. Test script: --------------- <?php $foo = ''; // Current response with null-coalescing operator echo $foo ?? 'default'; // '' // Possible response with ternary null-coalescing operator echo $foo ??: 'default'; // 'defaut' // Same response with current available PHP code echo (isset($foo) && $foo) ? $foo : 'default'; // 'default' $foo = false; // Current response with null-coalescing operator echo $foo ?? 'default'; // false // Possible response with ternary null-coalescing operator echo $foo ??: 'default'; // 'defaut' // Same response with current available PHP code echo (isset($foo) && $foo) ? $foo : 'default'; // 'default' $foo = null; // Current response with null-coalescing operator echo $foo ?? 'default'; // 'defaut' // Possible response with ternary null-coalescing operator echo $foo ??: 'default'; // 'defaut' // Same response with current available PHP code echo (isset($foo) && $foo) ? $foo : 'default'; // 'default' ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=75833&edit=1

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