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<?php $array = array(1); for ($i = 0; $i < 10; $i++) { $condition = array_shift(@$array); var_dump($condition, $array); echo PHP_EOL; }
Output for 8.3.0 - 8.3.7
Fatal error: Uncaught Error: array_shift(): Argument #1 ($array) could not be passed by reference in /in/CK8aq:5 Stack trace: #0 {main} thrown in /in/CK8aq on line 5
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Fatal error: Uncaught Error: array_shift(): Argument #1 ($array) cannot be passed by reference in /in/CK8aq:5 Stack trace: #0 {main} thrown in /in/CK8aq on line 5
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Only variables can be passed by reference in /in/CK8aq on line 5
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
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 5.1.2 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 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 - 4.3.11, 4.4.0 - 4.4.9, 5.0.2 - 5.0.5, 5.1.0 - 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

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