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run code in 200+ php & hhvm versions
Bugs & Features
<?php function doSomething( &$arg ) { $return = $arg; $arg += 1; return $return; } $a = 3; $b = doSomething( $a ); var_dump($a); var_dump($b);
Output for 5.6.0 - 7.3.0rc4
int(4) int(3)