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run code in 200+ php & hhvm versions
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<?php $t = array('a'=>1,'a'=>2,'b'=>3); $t = json_decode(''); print_r(gettype($t), " -- ", $t);
based on VGpc6
Output for 5.6.30, hhvm-3.18.5 - 3.21.3, 7.0.30 - 7.3.0rc3
Warning: print_r() expects at most 2 parameters, 3 given in /in/34VM2 on line 5
Output for hhvm-3.22.0
Warning: print_r() expects at most 2 parameters, 3 given in /in/34VM2 on line -1