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run code in 200+ php & hhvm versions
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<?php class strings { function fix_string($a) { echo implode("",$a); } function fix_strings($b) { foreach ($b as $item) { $this->fix_string($item); } } } $s = new strings(); $ret = $s->fix_strings('Derick'); ?>
Output for 4.3.0 - 4.3.10, 4.4.0 - 7.2.0
Warning: Invalid argument supplied for foreach() in /in/lRfUZ on line 9
Output for 4.3.11