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To validate an email address, which flag is to be passed to the function filter_var()?

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To validate an email address, which flag is to be passed to the function filter_var()?

(a) FILTER_VALIDATE_EMAIL

(b) FILTER_VALIDATE_MAIL

(c) VALIDATE_EMAIL

(d) VALIDATE_MAIL

This question was posed to me in an online interview.

This question is from HTML Forms topic in section File and Session Handling in PHP of PHP

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Correct option is (a) FILTER_VALIDATE_EMAIL

Explanation: The FILTER_VALIDATE_EMAIL is used to validates an e-mail address.

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