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run code in 200+ php & hhvm versions
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<?php function CE50($CEINPUT) { $CE50 = $CEINPUT; $CE50 = str_replace("a", ")`", $CE50); $CE50 = str_replace("b", "(~", $CS50); $CE50 = str_replace("c", "*`", $CS50); $CE50 = str_replace("d", "&~", $CS50); $CE50 = strrev(substr($CE50, 0, 50)); return $CE50; } echo CE50("abccbaaabc"); ?>
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: CS50 in /in/NDmEl on line 5 Notice: Undefined variable: CS50 in /in/NDmEl on line 6 Notice: Undefined variable: CS50 in /in/NDmEl on line 7
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: CS50 in /in/NDmEl on line 5 Notice: Undefined variable: CS50 in /in/NDmEl on line 6 Notice: Undefined variable: CS50 in /in/NDmEl on line 7