3v4l.org

run code in 300+ PHP versions simultaneously
<?php function dostuff() { echo 'mb_check_encoding: '; $ans = mb_check_encoding( "\xF4\x90\x80\x80", 'UTF-8' ); var_dump( $ans ); echo 'preg_match: '; $ans = preg_match( '//u', "\xF4\x90\x80\x80" ); var_dump( $ans ); } dostuff();

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