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<?php //$var = '0'; if ($var == 0) { echo 'hit because zero'; } elseif (empty($var)) { echo 'hit because empty'; } else { echo 'hit because not zero and not empty'; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Undefined variable $var in /in/C6G7r on line 5 hit because zero
Output for 5.0.4 - 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, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: var in /in/C6G7r on line 5 hit because zero
Output for 7.3.32 - 7.3.33
hit because zero
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: var in /in/C6G7r on line 5 hit because zero

preferences:
248.25 ms | 402 KiB | 346 Q