Add accented characters within an array

Question

I have a variable that stores a name:

$nome = 'André Ramos';

I have a array that displays all letters:

$letras = array (

            'A' => 1,
            'B' => 2,
            'C' => 3,
            'D' => 4,
            'F' => 8,
            'G' => 3,
            'H' => 5,
            'I' => 1,
            'J' => 1,
            'K' => 2,
            'L' => 3,
            'M' => 4,
            'N' => 5,
            'O' => 7,
            'P' => 8,
            'Q' => 1,
            'R' => 2,
            'S' => 3,
            'T' => 4,
            'U' => 6,
            'V' => 6,
            'X' => 6,
            'W' => 6,
            'Y' => 1,
            'Z' => 7,
            'Á' => 5,
            'É' => 4,
            'Í' => 8,
            'Ó' => 6,
            'Ú' => 3,
            'Ã' => 7,
            'Ñ' => 2

);

When you enter the name in the variable $nome I need the array $letras check each character and display its value. You need to display the value of accentuated letters as well.

For example:

$nome: 'André';

array (size=5)
  0 => int 1
  1 => int 5
  2 => int 4
  3 => int 2
  4 => int 4

Can someone help me ?

Answer 1

Your problem is basically walking through a string marked. The problem is that PHP, by default, will scroll through the characters at each byte, getting lost in multibyte characters, as in the case of accented letters. For example, strlen('andré') returns 6 instead of 5, because the letter é demand 2 bytes and the string integer has 6 bytes in total.

As discussed in:

• str_split does not work well in string containing UTF-8?

You can do:

$nome = 'andré';

if (preg_match_all('/./u', $nome, $caracteres) !== false) {
    $numeros = array_map(function ($letra) use ($letras) {
        return $letras[mb_strtoupper($letra)];
    }, $caracteres[0]);

    var_export($numeros);
}

The result will be:

array (
  0 => 1,
  1 => 5,
  2 => 4,
  3 => 2,
  4 => 4,
) 

Documentation of functions for research:

• preg_match_all
• array_map
• mb_strtoupper
• var_export

Answer 2

Follow the answer man...

<?php
    header('Content-Type: text/html; charset=utf-8');

    $encoding = mb_internal_encoding();
    $f_lambda = create_function('$a,$b', 'return array_key_exists($a,$b);');
    $arr_str_acentuados = array('Á' => 0,'É' => 0, 'Í' => 0, 'Ó' => 0, 'Ú' => 0);
    $frase = "É uma fraude! Como é fácil identificar essa coisas! Ótima solução!";
    $str_arr = str_split(mb_strtoupper(utf8_decode($frase),$encoding));

    foreach ($str_arr as $v)
       if($f_lambda(utf8_encode($v),$arr_str_acentuados))
          $arr_str_acentuados[utf8_encode($v)]++;


    print_r($arr_str_acentuados);
 ?>