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(PHP Extension) REST with Query Params

See more REST Examples

Demonstrates how to add query params for a REST request.

Chilkat PHP Downloads

PHP Extension for Windows, Linux, MacOS,
Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Let's say we want to send a GET request to 
// https://example.com/search?query=hello%20world&category=books&sortBy=price&filterBy=inStock

// Notice that the query parameter values must be URL encoded.

// Let's also explain the parts of the above URL:

//     Scheme: https
//         The scheme specifies the protocol used to access the resource. 
//         In this case, it is "https," which indicates that the resource is accessed using the Hypertext Transfer Protocol Secure (HTTPS).
// 
//     Host: example.com
//         The host part of the URL identifies the domain name or IP address of the server hosting the resource. In this case, "example.com" is the host.
// 
//     Path: /search
//         The path is the specific location or resource on the server that the client wants to access. 
//         In this URL, the path is "/search," indicating that the client is requesting the "search" resource on the server.
// 
//     Query Parameters:
//         Query parameters are used to send additional data to the server as key-value pairs. 
//         They are separated from the path by a question mark ? and each parameter is separated by an ampersand &.
// 
//         The above URL has four query parameters:
//             query=hello%20world: The "query" parameter with the value "hello world". The %20 represents the URL-encoded space character in the value.
//             category=books: The "category" parameter with the value "books".
//             sortBy=price: The "sortBy" parameter with the value "price".
//             filterBy=inStock: The "filterBy" parameter with the value "inStock".

$rest = new CkRest();

// Connect to the REST server.

// The Host part of the URL is passed in the 1st argument.
// The Scheme part of the URL ("https") is indicated by the 2nd and 3rd arguments (port and bTls).
$bTls = true;
$port = 443;
$bAutoReconnect = true;
$success = $rest->Connect('example.com',$port,$bTls,$bAutoReconnect);

// There are 3 ways to send the above GET request.

// 1) Send the request with path and query params pre-built, where the query param values are URL encoded.
$responseJson = $rest->fullRequestNoBody('GET','/search?query=hello%20world&category=books&sortBy=price&filterBy=inStock');
if ($rest->get_LastMethodSuccess() != true) {
    print $rest->lastErrorText() . "\n";
    exit;
}

// 2) Pass only the Path part of the URL, and specify the query params separately by calling AddQueryParams beforehand.
//    Again, the query params must be already URL encoded when passed to AddQueryParams
$rest->ClearAllQueryParams();
$rest->AddQueryParams('query=hello%20world&category=books&sortBy=price&filterBy=inStock');
$responseJson = $rest->fullRequestNoBody('GET','/search');
// ...
// ...

// 3) Pass each query parameter separately by calling AddQueryParam.  In this case, the query param value should be passed without URL encoding.
//    (ClearAllQueryParams ensures any params set for previous request are cleared.)
$rest->ClearAllQueryParams();
$rest->AddQueryParam('query','hello world');
$rest->AddQueryParam('category','books');
$rest->AddQueryParam('sortBy','price');
$rest->AddQueryParam('filterBy','inStock');
$responseJson = $rest->fullRequestNoBody('GET','/search');
// ...
// ...

?>

 

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