Online PHP editor | output for 9h3EK

<?php // https://github.com/onlinecity/php-smpp/blob/master/gsmencoder.class.php class GsmEncoder { /** * Encode an UTF-8 string into GSM 03.38 * Since UTF-8 is largely ASCII compatible, and GSM 03.38 is somewhat compatible, unnecessary conversions are removed. * Specials chars such as € can be encoded by using an escape char \x1B in front of a backwards compatible (similar) char. * UTF-8 chars which doesn't have a GSM 03.38 equivalent is replaced with a question mark. * UTF-8 continuation bytes (\x08-\xBF) are replaced when encountered in their valid places, but * any continuation bytes outside of a valid UTF-8 sequence is not processed. * * @param string $string * @return string */ public static function utf8_to_gsm0338($string) { $dict = array( '@' => "\x00", '£' => "\x01", '$' => "\x02", '¥' => "\x03", 'è' => "\x04", 'é' => "\x05", 'ù' => "\x06", 'ì' => "\x07", 'ò' => "\x08", 'Ç' => "\x09", 'Ø' => "\x0B", 'ø' => "\x0C", 'Å' => "\x0E", 'å' => "\x0F", 'Δ' => "\x10", '_' => "\x11", 'Φ' => "\x12", 'Γ' => "\x13", 'Λ' => "\x14", 'Ω' => "\x15", 'Π' => "\x16", 'Ψ' => "\x17", 'Σ' => "\x18", 'Θ' => "\x19", 'Ξ' => "\x1A", 'Æ' => "\x1C", 'æ' => "\x1D", 'ß' => "\x1E", 'É' => "\x1F", // all \x2? removed // all \x3? removed // all \x4? removed 'Ä' => "\x5B", 'Ö' => "\x5C", 'Ñ' => "\x5D", 'Ü' => "\x5E", '§' => "\x5F", '¿' => "\x60", 'ä' => "\x7B", 'ö' => "\x7C", 'ñ' => "\x7D", 'ü' => "\x7E", 'à' => "\x7F", '^' => "\x1B\x14", '{' => "\x1B\x28", '}' => "\x1B\x29", '\\' => "\x1B\x2F", '[' => "\x1B\x3C", '~' => "\x1B\x3D", ']' => "\x1B\x3E", '|' => "\x1B\x40", '€' => "\x1B\x65" ); $converted = strtr($string, $dict); // Replace unconverted UTF-8 chars from codepages U+0080-U+07FF, U+0080-U+FFFF and U+010000-U+10FFFF with a single ? return preg_replace('/([\\xC0-\\xDF].)|([\\xE0-\\xEF]..)|([\\xF0-\\xFF]...)/m','?',$converted); } /** * Count the number of GSM 03.38 chars a conversion would contain. * It's about 3 times faster to count than convert and do strlen() if conversion is not required. * * @param string $utf8String * @return integer */ public static function countGsm0338Length($utf8String) { $len = mb_strlen($utf8String,'utf-8'); $len += preg_match_all('/[\\^{}\\\~€|\\[\\]]/mu',$utf8String,$m); return $len; } /** * Pack an 8-bit string into 7-bit GSM format * Returns the packed string in binary format * * @param string $data * @return string */ public static function pack7bit($data) { $l = strlen($data); $currentByte = 0; $offset = 0; $packed = ''; for ($i = 0; $i < $l; $i++) { // cap off any excess bytes $septet = ord($data[$i]) & 0x7f; // append the septet and then cap off excess bytes $currentByte |= ($septet << $offset) & 0xff; // update offset $offset += 7; if ($offset > 7) { // the current byte is full, add it to the encoded data. $packed .= chr($currentByte); // shift left and append the left shifted septet to the current byte $currentByte = $septet = $septet >> (7 - ($offset - 8 )); // update offset $offset -= 8; // 7 - (7 - ($offset - 8)) } } if ($currentByte > 0) $packed .= chr($currentByte); // append the last byte return $packed; } } $resultat = GsmEncoder::utf8_to_gsm0338("abc é œ ♥"); var_export($resultat); echo "\n"; var_export(unpack("H*", $resultat));