Your app may have crashed while trying to receive an upload or return a response larger than it has been configured to manage.
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.
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