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run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = ["subject" => "1"]; $json = json_encode($array); $decoded = json_decode($json, true); $subject = $decoded['subject'] ?? ''; $val = 0; if ($subject === '') { $val = 5; } echo $val;
based on DoDtq
Output for hhvm-3.15.4, 7.0.0 - 7.3.0rc3
0
Output for 5.6.0 - 5.6.30
Parse error: syntax error, unexpected '?' in /in/HfDto on line 7
Process exited with code 255.