PHP safe URL string base64 encoding and decoding_PHP tutorial

If you use the base64_encode and base64_decode methods directly, the generated string may not be suitable for URL addresses. The following methods can solve this problem:

URL safe string encoding:

Copy code The code is as follows:

function urlsafe_b64encode($string) {
$data = base64_encode($string);
$data = str_replace(array('+','/','='),array('-','_',''),$data);
Return $data;
}

URL-safe string decoding:

Copy code The code is as follows:

function urlsafe_b64decode($string) {
$data = str_replace(array('-','_'),array('+','/'),$string);
$mod4 = strlen($data) % 4;
if ($mod4) {
         $data .= substr('====', $mod4);
}
Return base64_decode($data);
}

http://www.bkjia.com/PHPjc/825408.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/825408.htmlTechArticleIf you use the base64_encode and base64_decode methods directly, the generated string may not be suitable for the URL address. The following method can solve this problem: URL-safe string encoding: Copy...