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run code in 300+ PHP versions simultaneously
<?php function toAlpha ($num) { return strtr($num, range("A", "Z")); } $string = toAlpha("138201162401719"); echo "$string\n"; $string = toAlpha("123456789012345"); echo "$string\n"; $string = toAlpha("101112131415161"); echo "$string\n"; $string = toAlpha("2625242322212019"); echo "$string";
Output for rfc.property-hooks, git.master, git.master_jit
NIULGYART MDEFGHIJAMDEF KLMNOPQB CGZYXWVUT

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