3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '"Compilers are fun. They take nice, human readable languages like PHP or Hack and turn them into lean, mean, CPU executin&#039; turing machines. Some of these are simple enough a CS student can write one up in a weekend, some are the products of decades of fine tuning and careful architecting. Somewhere in that proud&hellip;"'; print html_entity_decode($str, ENT_QUOTES | ENT_HTML401);
Output for git.master, git.master_jit, rfc.property-hooks
"Compilers are fun. They take nice, human readable languages like PHP or Hack and turn them into lean, mean, CPU executin' turing machines. Some of these are simple enough a CS student can write one up in a weekend, some are the products of decades of fine tuning and careful architecting. Somewhere in that proud…"

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