Answer
phpinfo() displays PHP configuration, extensions, environment variables, and server settings.
Quick Answer
phpinfo() outputs a full HTML page showing PHP version, build info, loaded extensions, ini settings, environment variables, and HTTP request details. Extremely useful for debugging config issues. Critical security risk in production - never expose phpinfo() publicly. Use it locally or in dev only, then remove it. One of the first tools to check when debugging a PHP setup.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ