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How to check only alphanumeric and other language alphabet by using preg_replace? – SEO

I need to create a SEO friendly string only from alphanumeric and characters of my native language. It is sinhala.

My expected string should be something like this:

$myString = "this-is-a-දහසක්-බාධක-දුක්-කම්කටොලු-මැදින්-ලෝකය-දිනන්නට-වෙර-දරන";

I am using a function to create the string like this. And that function is as follow: 

function seoUrl($string) {
    //Lower case everything
    $string = strtolower($string);
    //Make alphanumeric (removes all other characters)
    $string = preg_replace("/[^a-z0-9_s-]/", "", $string);
    //Clean up multiple dashes or whitespaces
    $string = preg_replace("/[s-]+/", " ", $string);
    //Convert whitespaces and underscore to dash
    $string = preg_replace("/[s_]/", "-", $string);
    return $string;
}

This function only works for English characters and output of above string as below: 

$title = seoUrl("this-is-a-දහසක්-බාධක-දුක්-කම්කටොලු-මැදින්-ලෝකය-දිනන්නට-වෙර-දරන");
echo $title; // this-is-a-

Can anybody tell me how to modify above function to get all my characters (including my native language characters)

Hope somebody may help me out. Thank you.

Tags:

2

Answers


  1. 0

    You use multibyte encoding. preg_replace doesn’t work with multibyte encoding. You should use mb_ereg_replace function

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  2. 0

    Use /u flag for unicode and pL for letters, pN for numbers.

    Edit: due to some multibyte characters, mb_ereg_replace is the good choice:

    function seoUrl($string) {
    //Lower case everything
    $string = strtolower($string);
    //Make alphanumeric (removes all other characters)
    $string = mb_ereg_replace("[^x0D-x0Ews-]", "", $string);
    //Clean up multiple dashes or whitespaces
    $string = preg_replace("/[s-]+/", " ", $string);
    //Convert whitespaces and underscore to dash
    $string = preg_replace("/[s_]/", "-", $string);
    return $string;
}
$title = seoUrl("this-is-a-දහසක්-බාධක-දුක්-කම්කටොලු-මැදින්-ලෝකය-දිනන්නට-වෙර-දරන");
echo $title;

    Output:

    this-is-a-දහසක්-බාධක-දුක්-කම්කටොලු-මැදින්-ලෝකය-දිනන්නට-වෙර-දරන
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