3v4l.org

run code in 300+ PHP versions simultaneously
<?php $supportedEncodings = [ 'iso-8859-1', 'iso8859-1', 'iso-8859-5', 'iso8859-5', 'iso-8859-15', 'iso8859-15', 'utf-8', 'cp866', 'ibm866', '866', 'cp1251', 'windows-1251', 'win-1251', '1251', 'cp1252', 'windows-1252', '1252', 'koi8-r', 'koi8-ru', 'koi8r', 'big5', '950', 'gb2312', '936', 'big5-hkscs', 'shift_jis', 'sjis', 'sjis-win', 'cp932', '932', 'euc-jp', 'eucjp', 'eucjp-win', 'macroman' ]; var_dump(isset($supportedEncodings['866']));
Output for git.master, git.master_jit, rfc.property-hooks
bool(false)

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