url - encodeURI() in PHP?

Question

Is there some encodeURI() function in PHP that does not encode: ~!@#$&*()=:/,;?+'?

Answer 1

I'm using this now

function encodeURI($url) {
    // http://php.net/manual/en/function.rawurlencode.php
    // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/encodeURI
    $unescaped = array(
        '%2D'=>'-','%5F'=>'_','%2E'=>'.','%21'=>'!', '%7E'=>'~',
        '%2A'=>'*', '%27'=>"'", '%28'=>'(', '%29'=>')'
    );
    $reserved = array(
        '%3B'=>';','%2C'=>',','%2F'=>'/','%3F'=>'?','%3A'=>':',
        '%40'=>'@','%26'=>'&','%3D'=>'=','%2B'=>'+','%24'=>'$'
    );
    $score = array(
        '%23'=>'#'
    );
    return strtr(rawurlencode($url), array_merge($reserved,$unescaped,$score));

}

It basically rawurlencodes everything, and then decodes a few things back (as Zanlok suggested in his comment). This should conform to the Mozilla specs of encodeURI.

And following MDN, 'if one wishes to follow the more recent RFC3986 for URLs', add

function fixedEncodeURI($url) {
    return strtr(encodeURI($url),array('%5B'=>'[', '%5D'=>']'));
}