3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $stuff = array( array('qty' => 2, 'item' => 'foo'), array('qty' => 3, 'item' => 'bar') ); echo sprintf('<input type="hidden" name="stuffarray" value="%s">', json_encode($stuff)) . PHP_EOL; echo sprintf('<input type="hidden" name="stuffarray" value="%s">', base64_encode(serialize($stuff))) . PHP_EOL;
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
<input type="hidden" name="stuffarray" value="[{"qty":2,"item":"foo"},{"qty":3,"item":"bar"}]"> <input type="hidden" name="stuffarray" value="YToyOntpOjA7YToyOntzOjM6InF0eSI7aToyO3M6NDoiaXRlbSI7czozOiJmb28iO31pOjE7YToyOntzOjM6InF0eSI7aTozO3M6NDoiaXRlbSI7czozOiJiYXIiO319">
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/KlghJ on line 7
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/KlghJ on line 7
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/KlghJ on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/KlghJ on line 7