Created
February 8, 2012 17:52
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Read URL GET variable
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| // Given a query string "?to=email&why=because&first=John&Last=smith" | |
| // getUrlVar("to") will return "email" | |
| // getUrlVar("last") will return "smith" | |
| // Slightly more concise and improved version based on http://www.jquery4u.com/snippets/url-parameters-jquery/ | |
| function getUrlVar(key){ | |
| var result = new RegExp(key + "=([^&]*)", "i").exec(window.location.search); | |
| return result && unescape(result[1]) || ""; | |
| } | |
| // To convert it to a jQuery plug-in, you could try something like this: | |
| (function($){ | |
| $.getUrlVar = function(key){ | |
| var result = new RegExp(key + "=([^&]*)", "i").exec(window.location.search); | |
| return result && unescape(result[1]) || ""; | |
| }; | |
| })(jQuery); |
Author
Nice elegant, thanks.
I replaced unescape with decodeURIComponent to support utf-8 htmlentities characters.
Wonderful. Thank you!
I'm new to this so I apologize if this is obvious to some....
But how do I call getUrlVar(key) and use the result in another link
on my html page?
For example: http://FirstUrl.com/?id=123456
I need to extract the id (123456) from the First Url and use that
in my Second Url so the link is Clickable.
href=http://SecondUrl.com/?id=123456
Any help gratefully accepted, it's driving me nuts!!!
Thank you! THANK YOU! This helped me so much!
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If you would like to get all key/value pairs at once, use a variation of this function by Ashley Ford: http://papermashup.com/read-url-get-variables-withjavascript/