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run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array(1); for ($i = 0; $i < 10; $i++) { $condition = array_shift(@$array); var_dump($condition, $array); echo PHP_EOL; }
Output for 7.0.0 - 7.1.0
Notice: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Notice: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Notice: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Notice: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Notice: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Notice: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Notice: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Notice: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Notice: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Notice: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) }
Output for hhvm-3.10.0 - 3.12.0
Strict Warning: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Warning: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Warning: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Warning: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Warning: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Warning: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Warning: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Warning: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Warning: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Warning: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) }
Output for 5.1.2 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Standards: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Standards: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Standards: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Standards: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Standards: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Standards: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Standards: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Standards: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) } Strict Standards: Only variables should be passed by reference in /in/CK8aq on line 5 int(1) array(1) { [0]=> int(1) }
Output for 4.3.10 - 4.4.9, 5.0.2 - 5.1.1
int(1) array(0) { } NULL array(0) { } NULL array(0) { } NULL array(0) { } NULL array(0) { } NULL array(0) { } NULL array(0) { } NULL array(0) { } NULL array(0) { } NULL array(0) { }
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
int(1) array(0) { } Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CK8aq on line 7 PHP_EOLNULL array(0) { } Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CK8aq on line 7 PHP_EOLNULL array(0) { } Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CK8aq on line 7 PHP_EOLNULL array(0) { } Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CK8aq on line 7 PHP_EOLNULL array(0) { } Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CK8aq on line 7 PHP_EOLNULL array(0) { } Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CK8aq on line 7 PHP_EOLNULL array(0) { } Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CK8aq on line 7 PHP_EOLNULL array(0) { } Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CK8aq on line 7 PHP_EOLNULL array(0) { } Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CK8aq on line 7 PHP_EOLNULL array(0) { } Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CK8aq on line 7 PHP_EOL