How to adjust memory_limit in cPanel MultiPHP INI Editor

If your site shows memory exhausted errors, you can adjust memory_limit per domain from cPanel without changing server-level settings.

Before you start

• Confirm which domain is affected by the error.
• Identify the current memory_limit value.
• Pick an initial target value, for example 256M.

Steps

1. Sign in to cPanel and open MultiPHP INI Editor.
2. Select the domain where the error appears.
3. Find memory_limit and update it to the required value.
4. Save changes and wait for the system confirmation.

Final verification

• memory_limit shows the new saved value for that domain.
• The action that failed no longer shows a memory exhausted error.
• The site stays stable after the adjustment.

Common errors

• The change does not apply → a different domain was edited → return to the editor and verify the selected domain.
• The same error still appears → the value is still too low for that process → increase it gradually and test again.
• The site becomes unstable after a high value → the setting is too aggressive for your plan → return to a moderate value and review plugins.

Recommended reading

• How to fix Internal Server Error 500
• How to change PHP version with MultiPHP Manager in cPanel
• How to use File Manager in cPanel