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run code in 150+ php & hhvm versions
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<?php $parts = explode(';',"1352,13;21313"); print_r($val); $returnVal = array_pop($parts); print_r($returnVal);
Output for 5.0.4 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: val in /in/77AdJ on line 4 21313
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: val in /in/77AdJ on line 4 21313