<?php error_reporting(-1); function myCheck($in) { return isset($in); } $var1='Something'; $var2='var1'; echo 'Set:' . isset($$var2), "\n"; $var2='nope'; echo 'Set:' . isset($$var2), "\n"; $var2='var1'; echo 'Set:' . myCheck($$var2), "\n"; $var2='nope'; echo 'Set:' . myCheck($$var2), "\n"; ?>
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