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PHP language can use the GET method to pass array parameters. This method is usually used to submit a data collection containing multiple elements to the server and pass these data collections to the program to process the data. By passing array parameters using the GET method, you can easily pass array data to the page, whether using a Form or accessing the page via a URL.
First, we need to convert the array into a string and pass it as a URL parameter. Here you can use the http_build_query() function to convert the array into a URL-encoded string. This function accepts two parameters, the first is the array to be encoded, and the second is the parameter separator, whose default value is '&' in the URL.
For example, if you want to pass an array containing two elements, name and age, through the URL, then you can use the following code to construct the URL parameters:
$data = array('name' => '张三', 'age' => 26); $url = 'https://www.example.com/?' . http_build_query($data);
The above code will generate the following URL:
https://www.example.com/?name=%E5%BC%A0%E4%B8%89&age=26
So, please note that after the array is passed, the Chinese in the array will be automatically converted to URL encoding.
When receiving the passed URL parameters, we need to use the $_GET super global variable to obtain and parse. When the parameters passed by the GET method are arrays, $_GET will parse these parameters into associative arrays.
We can use the following code at the top of the PHP script to parse the URL parameters:
$data = $_GET;
Then, you can process the passed $data array as you normally process arrays. The sample code is as follows:
if(isset($data['name']) && isset($data['age'])) { echo '姓名:' . $data['name'] . '<br>'; echo '年龄:' . $data['age']; }
In short, PHP can use the GET method to pass array parameters. You just convert the array to a URL-encoded string and pass it to the server using HTTP's GET method. On the server side, you can use the $_GET super global variable to get and parse this array parameter and process it accordingly.
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