Get value from URL in Javascript|jQuery and Symfony2 project

Question

I need to get some parameters from URL using Javascript/jQuery and I found this nice function:

function getURLParameter(sParam) {
    var sPageURL = window.location.search.substring(1),
        sURLVariables = sPageURL.split('&');

    for (var i = 0; i < sURLVariables.length; i++) {
        var sParameterName = sURLVariables[i].split('=');
        if (sParameterName[0] == sParam) {
            return sParameterName[1];
        }
    }
};

So I started to use in my code but I'm having some issues since the parameter I'm looking for comes undefined. First, this is a Symfony2 project so Profiler gives me this information:

Request Attributes

Key                             Value
_route_params                   [registro => 1, solicitud => 58]
...
registro                        1
solicitud                       58

What I need from here is registro and solicitud. So what I did at Javascript side was this:

console.log(getURLParameter('registro')); // gets undefined

But surprise I get undefined and I think the cause is that registro is not present at URL which is http://project.dev/app_dev.php/proceso/1/58/modificar but it's present in the REQUEST. How I can get the registro and solicitud values from whithin Javascript? I need to send those parameters to a Ajax call, any advice?

could also pass a variable from php to javascript that contains the url params when page loads — charlietfl
– charlietfl, Commented Feb 12, 2015 at 15:41

Ragnar · Accepted Answer · 2015-02-12 16:00:41Z

1

Try using this function:

function getParameters(){
    var url = window.location.href; //get the current url
    var urlSegment = url.substr(url.indexOf('proceso/')); //copy the last part
    var params = urlSegment.split('/'); //get an array
    return {registro: params[1], solicitud: params[2]}; //return an object with registro and solicitud
}

Then you can call the function and use the values:

var params = getParameters();
console.log(params.registro);
console.log(params.solicitud);

edited Feb 12, 2015 at 16:00

answered Feb 12, 2015 at 15:54

Ragnar

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3 Comments

ReynierPM Over a year ago

The function looks good but is restricted to only this case and the idea is to make it macro so that works for any parameter, not only for these two, have you any better ideas regarding this?

Ragnar Over a year ago

If you want to write a function for general purpose you need to include each parameter's name in the URL for example: /registro/1/solicitud/48 in order to get key - value pairs

Ragnar Over a year ago

Another thing you can do is split the entire URL and if you know the position of each parameter in the array, you can get the value of each one.

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