How to Increase PHP Memory Limit for Optimal Website Performance

In the world of web development, optimizing the performance of your site is crucial. One important aspect of this optimization is managing the PHP memory limit. This limit determines the maximum amount of memory that a PHP script can use during its execution. In this guide, we will explore three methods to increase PHP memory limit, ensuring your website operates smoothly and efficiently.

Understanding PHP Memory Limit

PHP memory limit is a critical setting that limits the amount of memory a particular PHP script can use. This limit is typically set by the hosting provider, but you can increase it if needed. A standard memory limit is set to 8 to 12 MB, which is usually enough for basic scripts. However, if you are running intensive applications like CMS (Content Management Systems), e-commerce platforms, chat applications, forums, galleries, or blogs, you may need a higher memory limit.

Method 1: Using MultiPHP INI Editor (Basic Mode)

Step-by-Step Guide

Login to cPanel.

Navigate to the Software section and click on MultiPHP INI Editor.

You will be taken to the MultiPHP INI editor dashboard.

Select Basic mode as it is the default setting.

Select the domain you want to adjust the memory limit for.

You will see a list of PHP directives. Adjust the memory limit as per your requirements.

Click on the Apply button to save the changes.

Check the updated memory limit by selecting your domain.

Method 2: Using MultiPHP INI Editor (Editor Mode)

Step-by-Step Guide

Click on Editor mode.

Select your domain in the edit PHP INI settings.

You will see the code generated. Adjust the memory limit as per your requirements.

Click on the Save button to apply the changes.

To verify the updated memory limit, click on Basic mode and select your domain. You should see the increased memory limit.

Method 3: Using .htaccess File Through File Manager

Step-by-Step Guide

Click on File Manager from the File section.

Select the public_html directory on the left.

On the right, you will see all files and folders. Right-click on .htaccess and select the edit option.

A dialogue box will appear, asking for character encoding. If you don't want to select any, just click on the edit button.

After clicking edit, a new window with PHP code appears. Adjust the memory limit as needed.

Click on the Save Changes button to save the file.

To check the updated memory limit, right-click on .htaccess and select the view option. The new window will show the increased memory limit.

By following these steps, you can effectively manage the PHP memory limit for optimal performance. If you encounter any issues or need further assistance, please refer to the detailed video guide provided below.

Watch the video guide