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run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL | E_STRICT); var_dump(json_decode(' '));
Output for 5.2.0, 5.2.9 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
NULL
Output for 5.2.1 - 5.2.8
string(1) " "
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
<br /> <b>Fatal error</b>: Call to undefined function json_decode() in <b>/in/hNTqY</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.4.5 - 4.4.9
<br /> <b>Fatal error</b>: Call to undefined function: json_decode() in <b>/in/hNTqY</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
<br /> <b>Fatal error</b>: Call to undefined function: json_decode() in <b>/in/hNTqY</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1
<br /> <b>Fatal error</b>: Call to undefined function: json_decode() in <b>/in/hNTqY</b> on line <b>3</b><br />

preferences:
242.85 ms | 401 KiB | 343 Q