Urlencode Javascript – Urldecode Php

// ====================================================================
 
//       URLEncode and URLDecode functions
 
//
 
// Copyright Albion Research Ltd. 2002
 
// http://www.albionresearch.com/
 
//
 
// You may copy these functions providing that
 
// (a) you leave this copyright notice intact, and
 
// (b) if you use these functions on a publicly accessible
 
//     web site you include a credit somewhere on the web site
 
//     with a link back to http://www.albionresearch.com/
 
//
 
// If you find or fix any bugs, please let us know at albionresearch.com
 
//
 
// SpecialThanks to Neelesh Thakur for being the first to
 
// report a bug in URLDecode() - now fixed 2003-02-19.
 
// And thanks to everyone else who has provided comments and suggestions.
 
// ====================================================================
 
function URLEncode(str)
 
{
 
 // The Javascript escape and unescape functions do not correspond
 
 // with what browsers actually do...
 
 var SAFECHARS = "0123456789" +					// Numeric
 
 				"ABCDEFGHIJKLMNOPQRSTUVWXYZ" +	// Alphabetic
 
 				"abcdefghijklmnopqrstuvwxyz" +
 
 				"-_.!~*'()";					// RFC2396 Mark characters
 
 var HEX = "0123456789ABCDEF";	var plaintext = str;
 
 var encoded = "";
 
 for (var i = 0; i < plaintext.length; i++ ) {
 
 	var ch = plaintext.charAt(i);
 
     if (ch == " ") {
 
 	    encoded += "+";				// x-www-urlencoded, rather than %20
 
 	} else if (SAFECHARS.indexOf(ch) != -1) {
 
 	    encoded += ch;
 
 	} else {
 
 	    var charCode = ch.charCodeAt(0);
 
 		if (charCode > 255) {
 
 		    alert( "Unicode Character '"
 
                        + ch
 
                        + "' cannot be encoded using standard URL encoding.\n" +
 
 			          "(URL encoding only supports 8-bit characters.)\n" +
 
 					  "A space (+) will be substituted." );
 
 			encoded += "+";
 
 		} else {
 
 			encoded += "%";
 
 			encoded += HEX.charAt((charCode >> 4) & 0xF);
 
 			encoded += HEX.charAt(charCode & 0xF);
 
 		}
 
 	}
 
 } // for
 
//document.URLForm.F2.value = encoded;
 
 return encoded;
 
 //return false;
 
};