WP Toolkit - WordPress Memory Exhausted Error – Increase PHP Memory

What Is the WordPress Memory Exhausted Error?

WordPress is written in PHP, which is a server-side programming language. Additionally, every website needs a WordPress hosting server for it to function properly.

Web servers are just like any other computer. They need a certain amount of memory to efficiently run multiple applications at the same time. Server administrators allocate specific memory sizes to different applications, including PHP.

When your WordPress code requires more memory than the default allocated memory, you will see this error message:

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 2348617 bytes) in /home/xxx/public_html/wp-includes/plugin.php on line xxx

Your WordPress site may be exhausting its server memory if it has:

  • A lot of images, videos, and other types of media
  • Plenty of unused WordPress plugins
  • Outgrown its hosting plan resources

By default, WordPress automatically tries to increase the PHP memory limit if it is less than 64MB. However, 64MB is often not high enough.

Having said that, let’s see how to easily increase the PHP memory limit in WordPress to avoid the memory exhausted error.

How to Increase the PHP Memory Limit in WordPress

There are several ways to increase the PHP memory limit. One is to edit the wp-config.php file, another is to tweak the .htaccess file, and the last method is to check the php.ini file.

Let’s go through each one:

Editing the wp-config.php File

First, you need to edit the wp-config.php file on your WordPress site. It is one of the core WordPress files located in your WordPress site’s root directory, usually named public_html.

You will need to use an FTP client like FileZilla or file manager in your web hosting control panel.

Next, you need to paste the following line in the wp-config.php file just before the one that says, That's all, stop editing! Happy blogging.

define( 'WP_MEMORY_LIMIT', '256M' );

 

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