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

From: lito at eordes dot com Operating system: All PHP version: Irrelevant Package: PHP Language Specification Bug Type: Feature/Change Request Bug description:Improve null-coalescing operator (??) adding empty check (??:) 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 bug report at https://bugs.php.net/bug.php?id=75833&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75833&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75833&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75833&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75833&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75833&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75833&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75833&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75833&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75833&r=support Expected behavior: https://bugs.php.net/fix.php?id=75833&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75833&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75833&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75833&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75833&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75833&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75833&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75833&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75833&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75833&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75833&r=mysqlcfg