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run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array(1, 1, 2, 3, 5, 8, 13, 21, 34, 55); foreach ($array as &$value) { $value *= value; } var_dump($array); $value = 42; var_dump($array);
Output for 7.1.0
Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Warning: A non-numeric value encountered in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Warning: A non-numeric value encountered in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Warning: A non-numeric value encountered in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Warning: A non-numeric value encountered in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Warning: A non-numeric value encountered in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Warning: A non-numeric value encountered in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Warning: A non-numeric value encountered in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Warning: A non-numeric value encountered in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Warning: A non-numeric value encountered in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Warning: A non-numeric value encountered in /in/1gtk3 on line 7 array(10) { [0]=> int(0) [1]=> int(0) [2]=> int(0) [3]=> int(0) [4]=> int(0) [5]=> int(0) [6]=> int(0) [7]=> int(0) [8]=> int(0) [9]=> &int(0) } array(10) { [0]=> int(0) [1]=> int(0) [2]=> int(0) [3]=> int(0) [4]=> int(0) [5]=> int(0) [6]=> int(0) [7]=> int(0) [8]=> int(0) [9]=> &int(42) }
Output for 5.2.1 - 7.0.14
Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 array(10) { [0]=> int(0) [1]=> int(0) [2]=> int(0) [3]=> int(0) [4]=> int(0) [5]=> int(0) [6]=> int(0) [7]=> int(0) [8]=> int(0) [9]=> &int(0) } array(10) { [0]=> int(0) [1]=> int(0) [2]=> int(0) [3]=> int(0) [4]=> int(0) [5]=> int(0) [6]=> int(0) [7]=> int(0) [8]=> int(0) [9]=> &int(42) }
Output for 5.0.0 - 5.2.0
Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 Notice: Use of undefined constant value - assumed 'value' in /in/1gtk3 on line 7 array(10) { [0]=> &int(0) [1]=> &int(0) [2]=> &int(0) [3]=> &int(0) [4]=> &int(0) [5]=> &int(0) [6]=> &int(0) [7]=> &int(0) [8]=> &int(0) [9]=> &int(0) } array(10) { [0]=> &int(0) [1]=> &int(0) [2]=> &int(0) [3]=> &int(0) [4]=> &int(0) [5]=> &int(0) [6]=> &int(0) [7]=> &int(0) [8]=> &int(0) [9]=> &int(42) }
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/1gtk3 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/1gtk3 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/1gtk3 on line 5
Process exited with code 255.