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run code in 200+ php & hhvm versions
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<?php $json = "{'1547':29}"; $json = json_decode($json); foreach($json as $key => $val) { echo $key.' - '.$val.PHP_EOL; }
based on HcRSd
Output for 5.2.0 - 7.2.0
Warning: Invalid argument supplied for foreach() in /in/2R66u on line 7
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/2R66u on line 5
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_decode() in /in/2R66u on line 5
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_decode() in /in/2R66u on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_decode() in /in/2R66u on line 5