PHP settings

PHP settings let you change a sandbox’s runtime without editing configuration files by hand. Open Site settings, then select PHP configuration once the sandbox is ready.

The PHP configuration panel on the sandbox detail page

Switch PHP versions

Choose PHP 8.5, 8.4, 8.3, or 8.2 from the version selector. Switching restarts the sandbox for a few seconds, but leaves its files and database unchanged. PHP 8.5 and 8.4 use cold provisioning when creating a new sandbox. PHP 7.4 and 8.1 were retired on October 22, 2026, because they are end of life and no official release of either carries the critical security fixes PHP released the day before. Every active sandbox that ran them was moved to PHP 8.3.

Tune php.ini values

Save all required changes together. SandyWP restarts the sandbox briefly to apply them.

Setting	Default	Allowed range
Max execution time	300 s	10–300 s
Max input time	300 s	10–300 s
Max input vars	1,000	100–10,000
Memory limit	256 MB	64–512 MB
Post max size	256 MB	8–5,120 MB
Upload max filesize	256 MB	2–5,120 MB
Session GC max lifetime	1,440 s	300–86,400 s
Output buffering	4,096 bytes	0–65,536 bytes

You can also toggle allow_url_fopen. The upload limit cannot exceed the post-size limit, and the memory limit is capped below the sandbox container limit. Use the File Manager to pair PHP changes with code edits, or create the stack you need from the beginning with Create a sandbox.

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Switch PHP versions

Tune php.ini values

​Switch PHP versions

​Tune php.ini values

Switch PHP versions

Tune php.ini values