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run code in 300+ PHP versions simultaneously
<?php foreach($_SERVER as $k => $v) { echo("$k => $ "); }
Output for git.master, git.master_jit, rfc.property-hooks
TERM => $ PATH => $ LANG => $ SHELL => $ MAIL => $ LOGNAME => $ USER => $ HOME => $ PHP_SELF => $ SCRIPT_NAME => $ SCRIPT_FILENAME => $ PATH_TRANSLATED => $ DOCUMENT_ROOT => $ REQUEST_TIME_FLOAT => $ REQUEST_TIME => $ argv => $ argc => $

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