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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(1=>"a",2=>"b",3=>"c",4=>"d"); foreach($a as $key=>$value) { $a[$key]=$value.toString(2); } print_r($a);
based on cRBsi
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught Error: Call to undefined function toString() in /in/TIsLK:5 Stack trace: #0 {main} thrown in /in/TIsLK on line 5
Process exited with code 255.
Output for 5.3.18 - 5.6.28
Fatal error: Call to undefined function toString() in /in/TIsLK on line 5
Process exited with code 255.