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How to configure PHP via `.htaccess` (change ini values)?


Configuring PHP settings via the `.htaccess` file is a common task for developers who need to modify the behavior of PHP scripts in a specific directory on their web server. This method of configuration is often used in shared hosting environments where access to the main `php.ini` file is restricted.

To alter PHP settings via `.htaccess`, you’ll be working with the `php_value` and `php_flag` directives. The `php_value` directive is used to set values that require a specific string or numeric value, while `php_flag` is used for settings that are either `On` or `Off`.

Here’s a step-by-step guide:

1. Locate or Create the `.htaccess` File: Ensure you have an `.htaccess` file in the directory where you need to change PHP settings. If one does not exist, you can create it using a text editor. Ensure the file is named exactly `.htaccess` (with a dot at the beginning).

1. Modify PHP Settings: Open the `.htaccess` file and add your PHP settings using the `php_value` or `php_flag` directives.

Examples: - To increase the maximum upload file size and the post size, you can add: \`\`\` php_value upload_max\_filesize 20M php_value post_max\_size 25M \`\`\` - To change the maximum execution time for scripts: \`\`\` php_value max_execution\_time 300 \`\`\` - To turn on the display of PHP errors (use with caution on production sites): \`\`\` php_flag display_errors On \`\`\` - To increase the memory limit: \`\`\` php_value memory_limit 128M \`\`\`

1. Save and Upload the `.htaccess` File: Save your changes and upload the `.htaccess` file to your web server’s directory if you’re working locally.

1. Verify Changes: To confirm that your changes have taken effect, you can create a `phpinfo.php` file in the same directory with the following content: \`\`\`php \`\`\` Access this file through your web browser to see a detailed report of the current PHP configuration.

Sources:

- Official PHP Documentation: The PHP manual provides specific details about configuration options and directives that can be used in `.htaccess`. Referencing the manual ensures that the settings you’re applying are accurate and up-to-date. [PHP Manual – Configuration File Directives](https://www.php.net/manual/en/configuration.changes.php)

- Apache HTTP Server Documentation: The Apache documentation gives comprehensive insights into how `.htaccess` files work and how they influence server behavior. [Apache .htaccess Tutorial](https://httpd.apache.org/docs/current/howto/htaccess.html)

- Common Hosting Provider Guides: Several hosting providers offer their documentation for configuring PHP in `.htaccess`. Examples include:
- Bluehost: [How to use .htaccess to modify PHP settings](https://www.bluehost.com/help/article/using-htaccess-to-modify-php-settings)
- HostGator: [Changing PHP Settings Using .htaccess](https://www.hostgator.com/help/article/how-to-change-php-settings-using-an-htaccess-file)
- GoDaddy: [Change PHP Settings via .htaccess](https://www.godaddy.com/help/changing-php-settings-in-your-hosting-account-9218)

By using the PHP and Apache official documentation along with specific guides from hosting providers, you can ensure that your `.htaccess` modifications are both effective and secure. This approach allows for a highly customizable and flexible environment, tailored to meet the specific requirements of your web applications.


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