My PHP app is timing out and throwing 5xx errors

Validated on 27 Aug 2024 • Last edited on 17 Apr 2025

Running out of time to execute a request is the most common cause of timeouts and 5xx errors in PHP apps on App Platform. By default, App Platform allows your app 30 seconds to execute a request before timing out. You can increase this time by editing your app’s .user.ini file and setting the max_execution_time value to a higher number. user.ini files allow you to configure and override PHP settings on a per directory basis.

To increase your app’s maximum execution time, add a .user.ini file to the root of your app with the following contents:

.user.ini
max_execution_time=your_preferred_execution_time

You can set the execution time to a maximum of 100 seconds.

How do I fix the error "Record is managed by an App on this account, and cannot be deleted"?

Use the app’s Settings tab to remove domains associated with App Platform apps.

Why do I get the error “JavaScript heap out of memory” during deployment?

Increase the heap memory by setting the environment variable NODE_OPTIONS=–max-old-space-size=4096.

How do I fix a "permission denied for schema public" error in my dev database?

Delete the existing dev database and create a new one. Then make sure that the app deployment completes successfully.

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