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Table of Contents
Ensure the server supports PHP
Put the PHP file in the correct directory
Configure the server to handle PHP requests
Pay attention to permissions and security settings
Home Backend Development PHP Tutorial How to execute PHP scripts on a web server?

How to execute PHP scripts on a web server?

Jun 28, 2025 am 02:24 AM

Running PHP scripts requires the following steps: 1. Make sure that the server is installed and enabled, and Linux can be installed and checked with the version; 2. Place the .php file in the root directory of the server document such as /var/www/html/ or C:\xampp\htdocs\; 3. Configure Apache or Nginx to handle PHP requests, enable the module or use PHP-FPM if necessary; 4. Set correct permissions and adjust the error prompts to ensure security. After completing the above steps, restart the service and access the execution results through the browser.

How to execute PHP scripts on a web server?

Running PHP scripts is not complicated, but novices are prone to encounter some problems when they first configure them. As long as the server environment is built correctly and the basic execution process is understood, the PHP program can be run smoothly.

How to execute PHP scripts on a web server?

Ensure the server supports PHP

First, you need to confirm whether your server has PHP installed and enabled. Most virtual hosts support PHP by default, but if you build your own server (such as Apache or Nginx), you need to manually install the PHP environment.

How to execute PHP scripts on a web server?
  • If you are using a Linux system, you can install PHP through the command line, for example, it can run on Ubuntu:
     sudo apt update
    sudo apt install php
  • After the installation is complete, check whether PHP is running normally and enter:
     php -v

If you see the version number output, it means that PHP has been installed successfully.

Put the PHP file in the correct directory

Different server configurations may store web page files in different locations, common ones such as:

How to execute PHP scripts on a web server?
  • Apache default path: /var/www/html/
  • XAMPP on Windows is usually: C:\xampp\htdocs\

You need to put the .php file into these directories to access it through the browser. For example, you created a test.php file with the following content:

 <?php
echo "Hello, world!";
?>

After putting it into the server document root directory, access it in the browser:

 http://localhost/test.php

You can see the output result.

Configure the server to handle PHP requests

If you are using Apache, usually just make sure the mod_php module is enabled. If it is Nginx, it needs to be used with PHP-FPM.

  • Common Apache configuration file location: /etc/apache2/sites-available/000-default.conf
  • Nginx configuration sample snippet:
     location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/run/php/php8.1-fpm.sock;
    }

Remember to restart the service after modifying the configuration:

 sudo systemctl restart apache2
# or sudo systemctl restart nginx

This way the server can correctly parse PHP files.

Pay attention to permissions and security settings

PHP scripts may operate on files, databases and other resources, so permission settings are important.

  • Make sure that the website directory has read permissions, but do not open global write permissions.
  • Do not place sensitive configuration files in web-accessible directories.
  • Error prompts can be enabled in the development environment:
     ini_set(&#39;display_errors&#39;, 1);
    ini_set(&#39;display_startup_errors&#39;, 1);
    error_reporting(E_ALL);

    But it must be closed before going online.

Basically these steps. It doesn't seem complicated, but it's easy to make mistakes at a certain step, especially when configuring the server. Just try a few more times and become familiar with the entire process, it will become natural to run PHP scripts.

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