3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { public $options = array(); public __construct() { $this->options['second_class'] = 'stdClass'; return new $this->options['second_class'](); } }
Output for 5.4.0 - 5.4.27
Parse error: syntax error, unexpected '__construct' (T_STRING), expecting variable (T_VARIABLE) in /in/BdCYv on line 7
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_STRING, expecting T_VARIABLE in /in/BdCYv on line 7
Process exited with code 255.
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