php strip url of all invalid characters

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Filippo
28 Jun 2020
1//replaces all invalid characters in a url with "-"
2function url($url) {
3   $url = preg_replace('~[^\\pL0-9_]+~u', '-', $url);
4   $url = trim($url, "-");
5   $url = iconv("utf-8", "us-ascii//TRANSLIT", $url);
6   $url = strtolower($url);
7   $url = preg_replace('~[^-a-z0-9_]+~', '', $url);
8   return $url;
9}
10//usage:
11$invalidURL = "https://example.com/~+test;
12$validURL = url($invalidURL);
13
source
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