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run code in 200+ php & hhvm versions
Bugs & Features
<?php function refArray($arr) { var_dump($arr); $refs = []; foreach ($arr as $key => $value) $refs[$key] = &$arr[$key]; var_dump($refs); return $refs; } $arr = [3, "hello", 0.8, null]; $referenceArray = refArray($arr); echo "----------------------\r\n"; var_dump($arr); var_dump($referenceArray);
Output for 5.4.0 - 7.2.0
array(4) { [0]=> int(3) [1]=> string(5) "hello" [2]=> float(0.8) [3]=> NULL } array(4) { [0]=> &int(3) [1]=> &string(5) "hello" [2]=> &float(0.8) [3]=> &NULL } ---------------------- array(4) { [0]=> int(3) [1]=> string(5) "hello" [2]=> float(0.8) [3]=> NULL } array(4) { [0]=> int(3) [1]=> string(5) "hello" [2]=> float(0.8) [3]=> NULL }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Ihmh2 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/Ihmh2 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Ihmh2 on line 5
Process exited with code 255.