如何从javascript传递编码值并在php页面解码？

Any body has any idea how to encode a value which has comma(,) or any other special character in javascript and then decode the value in a different php page?

javacript code for send values through url

function search(){
    var city_val = $('.city-selection').val();
    var venue_val = $('.venue-selection').val()
    var function_val = $('.function-selection').val();
    var loadpage = "/data/scripts/search_decor.php?city="+city_val+"&venue="+venue_val+"&function="+function_val;
    $('#main_content').load(loadpage, function() {});
}

php code for retreiving values from url

$city = $_GET['city'];
$venue = $_GET['venue'];
$function = $_GET['function'];

On the javascript side you need to use encodeURIComponent().
For example:

var city_val = encodeURIComponent($('.city-selection').val());

On the php side you should use urldecode(). For example:

$city = urldecode($_GET['city']);

Check the links for encodeURIComponent() and urldecode().

Use encodeURIComponent(string) in JS

and string urldecode ( string $str ) in PHP

function search(){
    var city_val = $('.city-selection').val();
    var venue_val = $('.venue-selection').val()
    var function_val = $('.function-selection').val();
    var loadpage = "/data/scripts/search_decor.php?city="+encodeURIComponent(city_val)+"&venue="+encodeURIComponent(venue_val)+"&function="+encodeURIComponent(function_val);
    $('#main_content').load(loadpage, function() {});
}

$city = urldecode($_GET['city']);
$venue = urldecode($_GET['venue']);
$function = urldecode($_GET['function']);