PHP check if url parameter exists

Use isset() $matchFound = (isset($_GET[“id”]) && trim($_GET[“id”]) == ‘link1′); $slide = $matchFound ? trim($_GET[“id”]) : ”; EDIT: This is added for the completeness sake. $_GET in php is a reserved variable that is an associative array. Hence, you could also make use of ‘array_key_exists(mixed $key, array $array)’. It will return a boolean that the key … Read more

How do you add query parameters to a Dart http request?

You’ll want to construct a Uri and use that for the request. Something like final queryParameters = { ‘param1’: ‘one’, ‘param2’: ‘two’, }; final uri = Uri.https(‘www.myurl.com’, ‘/api/v1/test/${widget.pk}’, queryParameters); final response = await http.get(uri, headers: { HttpHeaders.authorizationHeader: ‘Token $token’, HttpHeaders.contentTypeHeader: ‘application/json’, }); See https://api.dartlang.org/stable/2.0.0/dart-core/Uri/Uri.https.html

What is the difference between URL parameters and query strings?

The query component is indicated by the first ? in a URI. “Query string” might be a synonym (this term is not used in the URI standard). Some examples for HTTP URIs with query components: http://example.com/foo?bar http://example.com/foo/foo/foo?bar/bar/bar http://example.com/?bar http://example.com/?@bar._=???/1: http://example.com/?bar1=a&bar2=b (list of allowed characters in the query component) The “format” of the query component is … Read more

Python Dictionary to URL Parameters

Use urllib.parse.urlencode(). It takes a dictionary of key-value pairs, and converts it into a form suitable for a URL (e.g., key1=val1&key2=val2). For your example: >>> import urllib.parse >>> params = {‘a’:’A’, ‘b’:’B’} >>> urllib.parse.urlencode(params) ‘a=A&b=B’ If you want to make a URL with repetitive params such as: p=1&p=2&p=3 you have two options: >>> a = … Read more

Change URL parameters and specify defaults using JavaScript

I’ve extended Sujoy’s code to make up a function. /** * http://stackoverflow.com/a/10997390/11236 */ function updateURLParameter(url, param, paramVal){ var newAdditionalURL = “”; var tempArray = url.split(“?”); var baseURL = tempArray[0]; var additionalURL = tempArray[1]; var temp = “”; if (additionalURL) { tempArray = additionalURL.split(“&”); for (var i=0; i<tempArray.length; i++){ if(tempArray[i].split(‘=’)[0] != param){ newAdditionalURL += temp + … Read more

How to convert URL parameters to a JavaScript object? [duplicate]

In the year 2021… Please consider this obsolete. Edit This edit improves and explains the answer based on the comments. var search = location.search.substring(1); JSON.parse(‘{“‘ + decodeURI(search).replace(/”/g, ‘\\”‘).replace(/&/g, ‘”,”‘).replace(/=/g,'”:”‘) + ‘”}’) Example Parse abc=foo&def=%5Basf%5D&xyz=5 in five steps: decodeURI: abc=foo&def=[asf]&xyz=5 Escape quotes: same, as there are no quotes Replace &: abc=foo”,”def=[asf]”,”xyz=5 Replace =: abc”:”foo”,”def”:”[asf]”,”xyz”:”5 Suround with … Read more

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