Updates max_execution_time

[jonathanbossenger]

Related issues

• Fixes Native PHP sites default to a 30s max_execution_time (should match sandbox runtime) #4269

How AI was used in this PR

Claude Code used to explore and propose the fix. Manually reviewed and tested by me

Proposed Changes

• Sets the PHP max_execution_time to 0 (unlimited) instead of 30 seconds, to prevent long-running tasks from timing out when using PHP mode.

Testing Instructions

• Start a new Studio site running PHP mode
• Create a plugin which reports the PHP execution limits (example: https://github.com/jonathanbossenger/php-execution-limits/releases/tag/1.0.0)
• Check the max_execution_time value
• Apply the fix
• Check the new max_execution_time value

Pre-merge Checklist

• Have you checked for TypeScript, React or other console errors?

[wpmobilebot]

📊 Performance Test Results

Comparing 85e0c08 vs trunk

app-size

Metric	trunk	85e0c08	Diff	Change
App Size (Mac)	1355.70 MB	1355.70 MB	+0.00 MB	⚪ 0.0%

site-editor

Metric	trunk	85e0c08	Diff	Change
load	1040 ms	1105 ms	+65 ms	🔴 6.3%

site-startup

Metric	trunk	85e0c08	Diff	Change
siteCreation	6989 ms	6989 ms	0 ms	⚪ 0.0%
siteStartup	2352 ms	2350 ms	2 ms	⚪ 0.0%

---

Results are median values from multiple test runs.

Legend: 🟢 Improvement (faster) | 🔴 Regression (slower) | ⚪ No change (<50ms diff)