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  1. Retrieve the error number set by the last posix function that failed

  2. Returns the errno (error number) set by the last posix function that failed. If no errors exist, 0 is returned. If you're wanting the system error message associated ...

  3. Return Returns the errno (error number) set by the last posix function that failed. If no errors exist, 0 is returned.

  4. www.php-resource.de › en › php-manual- PHP-Resource

    Retrieve the error number set by the last posix function that failed. The system error message associated with the errno may be checked with posix_strerror ().

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  6. Description Returns the errno (error number) set by the last posix function that failed. If no errors exist, 0 is returned. If you're wanting the system error message associated with the errno, use posix_strerror () .

  7. 返回值 Returns the errno (error number) set by the last posix function that failed. If no errors exist, 0 is returned.