why isn't my php parsed

PHP is an open source server-side scripting language that was originally used for web development but is now widely used in various fields such as command line tools, desktop applications, and game development. However, many people often encounter some parsing problems when using PHP, such as scripts not being executed, error messages being unclear, etc. These problems may cause a lot of trouble to developers.

Why do PHP parsing problems occur?

PHP parsing problems are mainly caused by server configuration or PHP code itself. The following are some common reasons:

1. PHP is not installed on the server

When your server Your PHP scripts will not work when PHP is not installed. You can solve this problem by logging into the server and checking if PHP is installed.

2. The PHP file is not named correctly

Your PHP file must end with ".php" as the extension. If your file ends with another extension, such as ".html" or ".txt", the server will not be able to parse it as a PHP file, preventing the script from running properly.

3.PHP tag not set

Make sure the tag is set correctly in the PHP code. Tags in PHP are divided into short tags and long tags. The short tags are "", and the long tags are "". If the tag is not set correctly, the server will not be able to parse the code.

4.PHP version issue

If your PHP script is written on a newer version of PHP, your server may not be updated to the corresponding version. In this case, you need to upgrade your server to a PHP version that is compatible with the script.

5.PHP error prompts are disabled

In order to improve server security performance, sometimes PHP error prompts are disabled, which prevents the server from displaying detailed error messages when a PHP parsing error occurs. If this happens, you need to edit PHP's configuration file and add the following code to the file:

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

6.PHP syntax error

PHP syntax error is the most common PHP parsing problem, usually caused by syntax errors. If there are syntax errors, your code will not run. Therefore, you should pay attention to syntax issues when writing PHP code.

How to solve PHP parsing problem?

The following are some methods that can solve PHP parsing problems:

1. Check the server configuration

Check whether PHP is installed on the server, whether the PHP version matches, and the path to PHP is it right or not.

2. Use the correct extension

Name your PHP file with a file name that ends with ".php" and make sure you name it accordingly when called in an HTTP or HTML file .

3. Check PHP tags

Make sure the tags are set correctly in the PHP code, just use the regular "" long tags.

4. Enable error display

In order to display errors in the code, add the following code at the top of the PHP file:

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

5. Grammar detection tool

Use automated syntax detection tools, such as phpcs to check the syntax errors of the code .

Summary

When dealing with PHP parsing problems, you need to carefully check the PHP configuration, the code itself, and the server environment. If you encounter problems, you should solve them in time and debug the code. Only when we understand the cause of the problem can we solve the PHP parsing problem faster.

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