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The is_email function in WordPress is a handy utility that allows you to validate whether a given string is a valid email address or not. It checks the format of the email address to ensure it follows the standard email format rules.

This function can be extremely useful when building contact forms, user registration systems, or any other functionality that requires email validation. By using the is_email function, you can easily verify the input provided by users and ensure that it is a valid email address before further processing.

Here’s an example usage code that demonstrates how to use the is_email function:

$email = '';

if ( is_email( $email ) ) {
    echo 'Valid email address.';
} else {
    echo 'Invalid email address.';

In this example, we have assigned the email address ‘’ to the variable $email. We then use the is_email function to check if the email is valid or not. If it returns true, we display the message ‘Valid email address.’ Otherwise, if it returns false, we display the message ‘Invalid email address.’

By incorporating the is_email function into your WordPress development projects, you can ensure the integrity of the email addresses provided by users and enhance the overall user experience of your website or application.

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WordPress snippets using the is_email function

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