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function &myreffun($num) { return $num*$num; } $val=&myreffun(10); <?php function &globalvariables($str) { return $GLOBALS[$str]; } $number=30; $value1=$globalvariables(number); print value1."<br>"; $value1=40; print $value1."<br>"; ?>
Output for git.master, git.master_jit, rfc.property-hooks
function &myreffun($num) { return $num*$num; } $val=&myreffun(10); Warning: Undefined variable $globalvariables in /in/LsKKq on line 12 Fatal error: Uncaught Error: Value of type null is not callable in /in/LsKKq:12 Stack trace: #0 {main} thrown in /in/LsKKq on line 12
Process exited with code 255.

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