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run code in 150+ php & hhvm versions
Bugs & Features
<?php function add(&$var){ // The &amp; is before the argument $var $var++; } $a = 1; $b = 10; add($a); echo "a is $a,"; add($b); echo " a is $a, and b is $b"; // Note: $a and $b are NOT referenced
based on c4svG
Output for 4.3.0 - 5.0.5, 5.1.1 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
a is 2, a is 2, and b is 11
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/ArBLP on line 11
Process exited with code 255.