¿Cómo puedo convertir la codificación de utf-8 a codificación GSM 03.38 en PHP para SMS?

Question

Me pregunto cómo puedo codificar de UTF-8 a codificación GSM 03.38 en PHP?

Answer 1

Eche un vistazo a esto y vea si ayuda?

https://github.com/onlinecity/php-smpp/blob/master/gsmencoder.class.php

Answer 2

que tenían la misma duda y me encontré con la solución. @gumbo example y @mrAfzaL mencionaron la solución:

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" 
    ); 
    $converted = strtr(preg_replace('/\p{Mn}/u', '', Normalizer::normalize($string, Normalizer::FORM_KD)), $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); 
}