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HomeBackend DevelopmentPHP ProblemWhat should I do if an error occurs when browsing PHP web pages using wamp?

During the process of web development, due to various reasons, we often encounter errors when browsing PHP web pages using Wamp servers. At this time, we need to carry out certain troubleshooting and repairs before our PHP web page can be displayed normally. Below, this article will introduce some common errors and how to deal with them.

  1. Verify whether the Wamp service is started

First you need to confirm whether Wamp has been started. Open the Wamp service control software and you can see whether Apache and MySQL are both green in the "Service" column. If it is not green, then these two services need to be started.

  1. Check PHP syntax errors

In PHP programming, some syntax errors may cause the program to fail to execute normally or exceptions to occur during execution. If your PHP webpage cannot be accessed normally, you can check whether there are grammatical errors in the code. Open the PHP file with a text editor and add the following code at the top to view the PHP error message:

ini_set('display_errors', '1');
error_reporting(E_ALL);
  1. Check MySQL database connection

If your PHP web page requires Connecting to a MySQL database, errors may also occur when connecting to the server. You can open the PHP file where the connection code is located and add the following code to the end of the file:

echo mysqli_connect_error();

If there is an error in your connection code, an error message will be displayed on the page. You can make corresponding adjustments based on the error message. In addition, if you need to run MySQL in Wamp, you also need to check whether the MySQL service has been started.

  1. Check the Apache configuration

Sometimes we may make errors when modifying the Apache configuration file, causing the PHP web page to be unable to access normally. You can find the apache/logs/error.log file in Wamp's home directory and view Apache's error log information in the file. Just fix the relevant configuration errors based on the log information.

  1. Check PHP extensions

Some PHP web pages may rely on certain PHP extensions, but these extensions may not be enabled in the default php.ini. If you are using Wamp, you can check whether the extension is enabled in the php.ini file:

extension=php_mysql.dll(已启用)
;extension=php_msql.dll(未启用)

Remove ";" in the file to enable the extension.

Summary

Through the above five aspects, we can initially troubleshoot errors that occur when accessing PHP web pages. Of course, in practice there are some other error causes and solutions, which require us to adjust and fix them according to the specific situation. Encountering errors in web development is not terrible. As long as you investigate patiently, you will definitely find a solution.

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