> For the complete documentation index, see [llms.txt](https://docs.mindstellar.com/osclass-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mindstellar.com/osclass-docs/configuring-osclass/increase-php-memory-limit.md).

# Increase PHP memory limit

### Increasing memory allocated to PHP

Released with version 2.3, the **OSC\_MEMORY\_LIMIT** option allows you to specify the maximum amount of memory that can be consumed by PHP. This setting may be necessary when you see a message such as "Allowed memory size of X bytes exhausted".

This setting increase PHP memory for OSClass, so it wouldn't affect other applications. By default, the memory allocated is set to 32MB. If PHP has been allocated 128MB, there is no need to set this value to 128M because OSClass checks if PHP has been allocated more memory than the entered value.

This setting may not work if your host doesn't allow for increasing the PHP memory limit. In that case, contact your host to increase the PHP memory limit.

Increase PHP Memory to 128MB (add this define constant in config.php)

```php
define('OSC_MEMORY_LIMIT', '128M') ;
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.mindstellar.com/osclass-docs/configuring-osclass/increase-php-memory-limit.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.