note 85866 deleted from function.utf8-encode by cmb

From: Date: Sun, 04 Dec 2016 12:14:58 +0000
Subject: note 85866 deleted from function.utf8-encode by cmb
References: 1  Groups: php.notes 
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Note Submitter: bitseeker ---- ...or just use this simple piece of code to check valid utf-8 string: <?php /** * Returns true if $string is valid UTF-8 and false otherwise. * * @since 1.14 * @param [mixed] $string string to be tested * @subpackage */ function is_utf8($string) { // From http://w3.org/International/questions/qa-forms-utf-8.html return preg_match('%^(?: [\x09\x0A\x0D\x20-\x7E] # ASCII | [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte | \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte | \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates | \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3 | [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15 | \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16 )*$%xs', $string); } ?>

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