PHP - Basics and Execution Model
You want a PHP script to execute different logic depending on whether it runs via CLI or a web server. Which approach is the most reliable?
You want a PHP script to execute different logic depending on whether it runs via CLI or a web server. Which approach is the most reliable?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand detection methods
php_sapi_name() reliably returns 'cli' when running in CLI mode.Step 2: Evaluate other options
$_SERVER['HTTP_HOST'] may not always be set; getenv('SERVER_SOFTWARE') varies; $_ENV['PATH'] is unrelated.Final Answer:
Use php_sapi_name() === 'cli' to detect CLI and branch logic accordingly. -> Option BQuick Check:
php_sapi_name() is most reliable [OK]
Quick Trick: Use php_sapi_name() for environment detection [OK]
Common Mistakes:
- Relying on $_SERVER variables that may be missing
- Using environment variables unrelated to execution mode
- Assuming presence of HTTP headers in CLI
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