thinkphp custom jump

In web development, it is often necessary to jump in the program. In thinkphp, you can use the jump function that comes with the system to jump, such as using the redirect function to implement redirection. But in most cases, the jump function that comes with the system cannot meet our needs. At this time, we need to customize the jump function.

In thinkphp, custom jump functions can be implemented by writing methods in the controller. Below we use a simple example to show how to customize the jump function.

Suppose we need to implement a jump function that can jump to a specified URL and pass parameters during the jump. First we need to define a method in the controller. The parameters of this method include the URL to be jumped and the parameters to be passed.

public function myRedirect($url, $params = [])
{
    $params_str = '';
    if(!empty($params)) {
        $params_str = http_build_query($params);
        $params_str = '&' . $params_str;
    }

    header('Location: ' . $url . $params_str);
    exit;
}

In the above code, we first assemble the passed parameters into a query string, then splice the entire URL and parameter string, and finally use the header function to jump. If the jump is successful, we also need to call the exit function to terminate the execution of the program.

When using a custom jump function, we can achieve the jump by calling the myRedirect function in the controller method. For example:

public function index()
{
    $params = [
        'name' => 'thinkphp',
        'version' => '5.1'
    ];

    $url = 'https://www.thinkphp.cn';
    $this->myRedirect($url, $params);
}

In the above example, we call the myRedirect function in the index method to jump, and pass a parameter array named $params.

Summary:

By customizing the jump function, we can achieve a more flexible and accurate jump. When the jump function that comes with the system cannot meet our needs, we can write a custom jump function according to the above method.

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