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<?php $array = array(null, false, 0, array(), 'false'); foreach ($array as $heru) { echo '!Isset: ' . (!isset($heru) ? 'True' : 'False') . PHP_EOL; echo '!: ' . (!$heru ? 'True' : 'False') . PHP_EOL; echo 'empty: ' . (empty($heru) ? 'True' : 'False') . PHP_EOL; }
Output for 4.3.10 - 4.3.11, 4.4.0 - 4.4.9, 5.0.2 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
!Isset: True !: True empty: True !Isset: False !: True empty: True !Isset: False !: True empty: True !Isset: False !: True empty: True !Isset: False !: False empty: False
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 6 !Isset: TruePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 7 !: TruePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 8 empty: TruePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 6 !Isset: FalsePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 7 !: TruePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 8 empty: TruePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 6 !Isset: FalsePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 7 !: TruePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 8 empty: TruePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 6 !Isset: FalsePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 7 !: TruePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 8 empty: TruePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 6 !Isset: FalsePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 7 !: FalsePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/LqN8T on line 8 empty: FalsePHP_EOL
preferences:
217.19 ms | 406 KiB | 343 Q