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This article mainly explains "using the browser's Javascript console to debug PHP programs". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "debug PHP programs using the browser's Javascript console".

PHP is a server-side scripting language used to develop dynamic web applications. Compared with JAVA, the lack of a good server-side debugging tool is one of its limitations. Usually we add echo, var_dump and other statements to the PHP code to display the values of variables and arrays in the browser to achieve the purpose of debugging.

Now, more and more browsers have this tool or Javascript console, through which we can easily display variables or array values in PHP code. Let's do an example. The PHP code in the example has four trace levels: info, warn, log, and error. Developers can use the browser console to display error variables and array values.

Copy the following code into the PHP file and save it as WebConsole.php

The copy code is as follows:

Now, import the WebConsole class and use the trace feature.

The copy code is as follows:

Now open your browser console and you will find a screenshot similar to the following:

Thank you for reading, the above is the content of "debugging PHP programs using the browser's Javascript console". After the study of this article, I believe you have a deeper understanding of the problem of using the browser's Javascript console to debug PHP programs, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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