Creating URL-Friendly Slugs using PHP
When building web applications, it's often necessary to convert strings into URL-friendly formats known as slugs. For instance, a string like "Andrés Cortez" should be converted to "andres-cortez" for use in a URL.
To achieve this, a custom PHP function can be employed:
public static function slugify($text, string $divider = '-')
{
// replace non letter or digits by divider
$text = preg_replace('~[^\pL\d]+~u', $divider, $text);
// transliterate
$text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);
// remove unwanted characters
$text = preg_replace('~[^-\w]+~', '', $text);
// trim
$text = trim($text, $divider);
// remove duplicate divider
$text = preg_replace('~-+~', $divider, $text);
// lowercase
$text = strtolower($text);
if (empty($text)) {
return 'n-a';
}
return $text;
}
This function utilizes a series of regular expressions and character conversions to transform the input string into a slug. It first replaces all non-alphanumeric characters with the specified divider. Then, it transliterates non-ASCII characters into their closest ASCII equivalents. Unwanted characters are removed, and the string is trimmed and converted to lowercase. Duplicate dividers are removed to ensure a clean slug.
By calling this slugify() function, developers can easily create slugs from Unicode strings, providing a straightforward solution for URL-friendly text in PHP applications.
The above is the detailed content of How Can I Create URL-Friendly Slugs from Strings using PHP?. For more information, please follow other related articles on the PHP Chinese website!
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