3v4l.org

run code in 300+ PHP versions simultaneously
<?php $nullvar = array( 0 => array('a' => 1) 1 => array('b' => 1) ); $nullvar[0]['a'] = null; if (isset($nullvar[0]['a'])) { echo "set"; } else { echo "not set"; } if (is_null($nullvar[0]['a'])) { echo "\nnull"; } else { echo "\nnot null"; }
Output for 5.4.0 - 5.4.24
Parse error: syntax error, unexpected '1' (T_LNUMBER), expecting ')' in /in/VX6AF on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_LNUMBER, expecting ')' in /in/VX6AF on line 5
Process exited with code 255.
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