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run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('a' => 1, 'b' => 2, 'c' => 3); $b = array('a' => 1, 'b' => 2, 'c' => 3); var_dump(count(array_diff_key($a, $b)));
Output for 5.1.0 - 7.1.0
int(0)
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function array_diff_key() in /in/WcDf0 on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_diff_key() in /in/WcDf0 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_diff_key() in /in/WcDf0 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_diff_key() in /in/WcDf0 on line 4