To increase the PHP memory limit in WordPress, you will need to modify the php(.)ini file. WordPress utilizes a default memory allocation that may be insufficient for handling server requests on a high-traffic website. While most shared and dedicated hosting accounts are optimized for WordPress, if you have a large number of plugins or need to upload large files, you might need to increase the memory available to WordPress.
To ensure the smooth operation of your WordPress website, it may be necessary to increase the PHP memory limit. This adjustment can be achieved through modifications to the htaccess file, wp-config(.)php file, or php(.)ini file. Increasing the PHP memory limit is a crucial initial step when installing a new theme on your WordPress site.
Why to Increase PHP Memory Limit
If you don’t increase php memory limit on your wordpress website, then you will get fatal error on your wordpress website and if php memory limit is low, if php resources are exhausted then fatal error will be thrown on your wordpress website and to avoid this fatal error (php memory limit error) you need to increase php memory limit.
How to Check WordPress Memory Limit
To check how much memory wordpress currently is set to in php.ini file to find these you will need to an FTP client such as filezilla and set up a new host in filezilla and connect to it using the ftp credentials from your hosting provider.
Inside of your FTP client navigate to your website folder then into wp-includes and locate the file named default-constance and open that with a text editor inside of default constant php file locate the line with WP_MEMORY_LIMIT on it the one above it is for you if you are using wordpress multi-site .
If you are using the regular version of wordpress look for WP memory limit underneath the else 40 megabytes is the current amount of allocated memory.
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How to Increase PHP Memory Limit WordPress
Here are 4 methods to efficiently increase the PHP memory limit in WordPress.
WP Config File
To increase php memory limit in wordpress go to the root of your website then locate the file called wp-config(.)php open the file up with the editor and look for php memory limit. If you don’t have a memory limit set in your file type define followed by parenthesis and WP_MEMORY_LIMIT and all in caps then the new limit in quotes will change it to 512mb and end the line with semicolon below is how it is:
Just copy and paste this if its not declared in your wp-config(.)php file :- define ( ‘WP_MEMORY_LIMIT’, ‘512’); here php memory limit is increased to 512mb. Make necessary change and upload file to server and now your php memory limit increased.
Using PHP INI File
Create php ini file on your root folder of your wordpress website and then paste this code – ‘memory_limit’ = ‘512’; and save the file.
You can also directly find php ini file in your php settings and modify memory_limit settings.
Using htaccess
Open htaccess file on your wordpress root folder, (this folder will be hidden, as htaccess is a dot file) and open it and paste the code in htaccess file – php_value memory_limit 256M and save the file.
Note: Modifying htaccess file, if you are familiar with htaccess file modification only.
Use Php memory limit Plugin
WordPress has many plugins, you can go to plugin section on your wordpress backend settings and install any php memory limit increase plugin and increase memory limit of wordpress.
Contact Hosting Provider
You can directly contact your hosting provider and ask them to increase php memory limit on your webiste.