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run code in 150+ php & hhvm versions
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<?php class Test { function hello ($arg) { return strlen($arg); } } $a = array('b' => array(new Test(), 'hello')); echo $a['b']('123');
Output for 5.4.0 - 7.1.0
3
Output for 5.0.0 - 5.3.29
Fatal error: Function name must be a string in /in/cZHfs on line 11
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Notice: Array to string conversion in /in/cZHfs on line 11 Fatal error: Call to undefined function: array() in /in/cZHfs on line 11
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Notice: Array to string conversion in /in/cZHfs on line 11 Fatal error: Call to undefined function: array() in /in/cZHfs on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Notice: Array to string conversion in /in/cZHfs on line 11 Fatal error: Call to undefined function: array() in /in/cZHfs on line 11