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run code in 150+ php & hhvm versions
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<?php $str = "{\"abcd\":\"123}"; $json = json_decode($str); echo ($json == null); var_dump($json); ?>
based on JoX7p
Output for 5.2.0 - 7.1.0
1NULL
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/AFsSi 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/AFsSi 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/AFsSi 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/AFsSi on line 5