Removing Accents and Transforming Spaces into PHP strokes

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I updated my PHP and my following Script which I used to transform the text without accents, and the spaces in strokes (-) no longer works in PHP due to the ereg_replace is obsolete.

<?php
    $variavel = "Céu Azul";
    $variavel_limpa = strtolower( ereg_replace("[^a-zA-Z0-9-]", "-", strtr(utf8_decode(trim($variavel)), utf8_decode("áàãâéêíóôõúüñçÁÀÃÂÉÊÍÓÔÕÚÜÑÇ"),"aaaaeeiooouuncAAAAEEIOOOUUNC-")) );
    echo $variavel_limpa; // ceu-azul
?>

What would be the solution for me to perform the transformation of this string (removing accents and placing dash between spaces) to work in PHP 7.

php string mysqli accentuation

3 answers

3

Like the ereg_replace has been deprecated, it is necessary to replace by another function. Instead of this function, you can use preg_replace, the working is very similar and the rules - practically - are the same.

To remove accented characters, you can use the function iconv, so you will "translate" some letters, for example:

<?php

$text = "O céu azul foi visto por André, João…";

/**
 * Converte a String para ASCII
 * O //TRANSLIT irá tentar traduzir os caracteres, por exemplo è => "`e"
 * Após isso, aplicamos uma expressão regular para deixar somente 
 * \w = Números, Letras e "underline"; e \s = espaço
 */
$text = preg_replace("/[^\w\s]/", "", iconv("UTF-8", "ASCII//TRANSLIT", $text));

/* Com o str_replace podemos substituir os espaços 
 * deixados na linha anterior, pelo hífen
 */
$text = str_replace(" ", "-", $text);

/* Transformamos todo o texto em minúsculo */
$text = strtolower($text);


echo $text;
// Output: o-ceu-azul-foi-visto-por-andre-joao

Demonstration: https://ideone.com/0VC8tb

  • It worked great! Thank you!

  • Because this is the answer that points the best way, which makes a "check" of the characters, whether ANSI (Ios-8859-1 or windows-1252) or utf-8, transcribes in ASCII if possible and what is not possible you eliminate with the metacharacters, making it something functional, different from the utf8_encode that always expects UTF-8 and that will not solve "any input". I’m not saying it’s 100% infallible, it might "eat" a few letters, but it’s a much more efficient internal resource than putting together a range àáâãäçèéêëìíîïñòóôõöùúûüýÿÀÁÂÃÄÇÈÉÊËÌÍÎÏÑÒÓÔÕÖÙÚÛÜÝ and use utf8_decode. + 1

2


Use the preg_replace, supported in PHP 7 as well.:

$variavel_limpa = strtolower( preg_replace("/[^a-zA-Z0-9-]/", "-", strtr(utf8_decode(trim($variavel)), utf8_decode("áàãâéêíóôõúüñçÁÀÃÂÉÊÍÓÔÕÚÜÑÇ"),"aaaaeeiooouuncAAAAEEIOOOUUNC-")) );

The boundaries must also be included // in regex.

Test here

  • Hello friend @dvd worked great! Before its edition was no "-" between the spaces. now it worked!

  • It is that had forgotten the detail of the delimiters. Worth!

1

strtolower - Converts a string to lowercase

strtr - translates certain characters into a string

utf8_decode - converts a string with ISO-8859-1 characters encoded with UTF-8 to single-byte ISO-8859-1. 

$variavel = "Céu Azul";
$variavel_limpa = strtolower(strtr(utf8_decode($variavel), utf8_decode('àáâãäçèéêëìíîïñòóôõöùúûüýÿÀÁÂÃÄÇÈÉÊËÌÍÎÏÑÒÓÔÕÖÙÚÛÜÝ '), 'aaaaaceeeeiiiinooooouuuuyyAAAAACEEEEIIIINOOOOOUUUUY-'));

example - PHP Sandbox

strtr and str_replace, essentially do the same thing, being that strtr is a little faster for simple operations.

For simple things any attempt to use regular expression fatally will be slower. Source

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