How to close specified web page in php

How to use PHP to close a specified web page

In PHP, you can close a specified web page by executing a piece of JavaScript code. This feature has many uses, such as adding an "Exit" button to a web page, which automatically closes the current web page after clicking this button.

First of all, before using PHP to close a web page, you need to understand how to use JavaScript to close a web page. The following is a simple sample code:

window.close(); // 关闭当前网页

This line of code means to close the current web page, which is the web page that the user is currently browsing.

However, if you want to close a specified web page, you need to use the window.opener property to get the handle of the parent window, and then call the close() method to close the specified window.

The following is a complete PHP sample code for closing a specified web page:

";
echo "var child_window = window.open('', '$window_name');";
echo "child_window.document.write('This is the child window.');";
echo "child_window.close_child_window = function() {";
echo "$javascript_code";
echo "};";
echo "";
?>

In this sample code, use the window.open() method to open it Create a new window named my_window. Next, use the document.write() method to write some text content to this window. Then, a function called close_child_window() is defined, which contains the JavaScript code to be executed. Finally, bind this function to the close_child_window property of the new window.

At this time, when you need to close this window, you can call window.opener.close_child_window() to execute JavaScript code to close this window.

It should be noted that when using this method to close the window, there is a restriction: this code can only be executed correctly when the method of closing pop-up windows in the options of the current browser is set to "Allow" .

Summary

The above is how to use PHP to close a specified web page. This feature can be used on web pages to improve user experience and make it easier for users to close the current web page or specific window. It should be noted that this method may be blocked by some browsers or browser plug-ins, so testing and compatibility checks are required when using it.

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