validate_username

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Summery Summery

Checks whether a username is valid.

Syntax Syntax

validate_username( string $username )

Parameters Parameters

$username

(Required) Username.

Return Return

(bool) Whether username given is valid

Source Source

File: wp-includes/user.php

		return $user->ID;
	}
	return false;
}

/**
 * Checks whether a username is valid.
 *
 * @since 2.0.1
 * @since 4.4.0 Empty sanitized usernames are now considered invalid
 *
 * @param string $username Username.
 * @return bool Whether username given is valid
 */

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Changelog Changelog

Changelog
Version Description
4.4.0 Empty sanitized usernames are now considered invalid
2.0.1 Introduced.

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