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this is my url ....where i want to change 40px to 250px ...here 40px is dynamic...how to change it in php....using regex...here is a link below
http://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/President_Barack_Obama.jpg/40px-President_Barack_Obama.jpg
here is the things...what i tried
url="http://upload.wikimedia.org/wikipedia/commons/thumb /8/8d/President_Barack_Obama.jpg/40px-President_Barack_Obama.jpg";
var filename = url.substring(url.lastIndexOf("/") + 1, url.lastIndexOf("."));
so any possible soluation
Try to use preg-replace() like,
PHP
$url = "http://upload.wikimedia.org/wikipedia/commons/thumb /8/8d/President_Barack_Obama.jpg/40px-President_Barack_Obama.jpg";
echo $filename = preg_replace('/\.jpg\/\d+px-/', '.jpg/250px-',$url);
Javascript
url = "http://upload.wikimedia.org/wikipedia/commons/thumb /8/8d/President_Barack_Obama.jpg/40px-President_Barack_Obama.jpg";
var filename = url.replace(/\.jpg\/\d+px-/, '.jpg/250px-');
alert(filename);
Demo
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For clarification of my question, let me specify everything,
There are three links (link A and Link B and Link C)
link A is:
https://abc.mdx.com/p?id={c_val}
link B is:
https://def.xyz.net/c?c_val={id}
Link C is:
https://ajddf.com/adfadfdfa4564
In my database I have a value adgaf7g6adf6gadfg8a86fgs9f6g
Now coming to main point, when someone redirects from link C
I want to pass adgaf7g6adf6gadfg8a86fgs9f6g in Link A
Something like this:
var url_string = window.location.href
var url = new URL(url_string);
var id = url.searchParams.get("id");
window.location.replace("www.redirectaddress.com/p?id="+id); //redirect
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I have a string
var str="[a54hy 8:45pm],[f57gh 9:20]"
i need to get
[f57gh 9:20pm]
I don't want to use split since the string length can be anything
This worked for me. where id is f57gh
var re='\\['+id + '([a-z0-9: ]+)\\]';
var rematch=RegExp(re,'g');
var mydata=str.match(rematch);
alert(mydata); //[f57gh 9:11am]
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Get Values from URL
var acutal_url = HTTP://my_host.com/account/apps/6/dashboard/6;
what i want is
var pattern_url = HTTP://my_host.com/account/apps/<int:app_id>/dashboard/<int:dash_id> ;
I want app_id & dash_id separately from this URL ..
Is it possible using JavaScript?
Try this
var acutal_url = "HTTP://my_host.com/account/apps/6/dashboard/6"
var app_id = acutal_url.substring( acutal_url.indexOf("/apps/") + 6, acutal_url.indexOf("/dashboard/") );
var dash_id = acutal_url.substring( acutal_url.indexOf("/dashboard/") + 11 );
alert(app_id);
alert(dash_id);
You should use regular expressions, but just in case you want a tool to do it for you, try http://txt2re.com/
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how would I check for string
<something> in var string = "some chars <something> somechars"
You can use String.match():
var res = string.match(/<something>/g); // ["<something>"]
If there is no match, the value of res will be null. See example on JSFiddle.
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Can you help me please to get some param from an URL.
Url should be the form : http.www.lolilol.com/gallery/Param1/Param2/Param3/
I need to get Param1, Param2 and Param3.
A simple solution :
var params = document.location.pathname.split('/').slice(2);
This gives you the array ["Param1", "Param2", "Param3"]
The regex would be http://www\.lolilol\.com/gallery/(.*)/(.*)/(.*)/ assuming you meant http://www.lolilol.com/gallery/Param1/Param2/Param3/