You have a PHP script that logs messages differently when run via CLI or web server. Which code snippet correctly implements this behavior?

hard📝 Application Q9 of 15

PHP - Basics and Execution Model

Aif (php_sapi_name() === 'cli') { error_log('CLI log'); } else { error_log('Web log'); }

Bif (php_sapi_name() = 'cli') { error_log('CLI log'); } else { error_log('Web log'); }

Cif ($_SERVER['REMOTE_ADDR']) { error_log('CLI log'); } else { error_log('Web log'); }

Dif (getenv('SERVER_SOFTWARE') === 'cli') { error_log('CLI log'); } else { error_log('Web log'); }

Step-by-Step Solution

Solution:

Step 1: Validate condition syntax
if (php_sapi_name() === 'cli') { error_log('CLI log'); } else { error_log('Web log'); } uses correct strict comparison and function.
Step 2: Evaluate other options
if (php_sapi_name() = 'cli') { error_log('CLI log'); } else { error_log('Web log'); } uses assignment instead of comparison; C incorrectly uses REMOTE_ADDR; D misuses SERVER_SOFTWARE.
Final Answer:
Option A correctly implements CLI vs web logging. -> Option A
Quick Check:
Use strict comparison and php_sapi_name() [OK]

Quick Trick: Use php_sapi_name() === 'cli' for logging [OK]

Common Mistakes:

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