wp_login_form( array $args = array() )

提供一个简单的登录表单供WordPress中的任何地方使用。
Provides a simple login form for use anywhere within WordPress.

说明（Description）

默认情况下，回显登录表单HTML。为$echo传递一个假值以返回它。

源码（Source）

/**
 * Provides a simple login form for use anywhere within WordPress. By default, it echoes
 * the HTML immediately. Pass array('echo'=>false) to return the string instead.
 *
 * @since 3.0.0
 *
 * @param array $args Configuration options to modify the form output.
 * @return string|void String when retrieving.
 */
function wp_login_form( $args = array() ) {
	$defaults = array(
		'echo' => true,
		'redirect' => ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], // Default redirect is back to the current page
		'form_id' => 'loginform',
		'label_username' => __( 'Username' ),
		'label_password' => __( 'Password' ),
		'label_remember' => __( 'Remember Me' ),
		'label_log_in' => __( 'Log In' ),
		'id_username' => 'user_login',
		'id_password' => 'user_pass',
		'id_remember' => 'rememberme',
		'id_submit' => 'wp-submit',
		'remember' => true,
		'value_username' => '',
		'value_remember' => false, // Set this to true to default the "Remember me" checkbox to checked
	);

	/**
	 * Filter the default login form output arguments.
	 *
	 * @since 3.0.0
	 *
	 * @see wp_login_form()
	 *
	 * @param array $defaults An array of default login form arguments.
	 */
	$args = wp_parse_args( $args, apply_filters( 'login_form_defaults', $defaults ) );

	/**
	 * Filter content to display at the top of the login form.
	 *
	 * The filter evaluates just following the opening form tag element.
	 *
	 * @since 3.0.0
	 *
	 * @param string $content Content to display. Default empty.
	 * @param array  $args    Array of login form arguments.
	 */
	$login_form_top = apply_filters( 'login_form_top', '', $args );

	/**
	 * Filter content to display in the middle of the login form.
	 *
	 * The filter evaluates just following the location where the 'login-password'
	 * field is displayed.
	 *
	 * @since 3.0.0
	 *
	 * @param string $content Content to display. Default empty.
	 * @param array  $args    Array of login form arguments.
	 */
	$login_form_middle = apply_filters( 'login_form_middle', '', $args );

	/**
	 * Filter content to display at the bottom of the login form.
	 *
	 * The filter evaluates just preceding the closing form tag element.
	 *
	 * @since 3.0.0
	 *
	 * @param string $content Content to display. Default empty.
	 * @param array  $args    Array of login form arguments.
	 */
	$login_form_bottom = apply_filters( 'login_form_bottom', '', $args );

	$form = '
		
			' . $login_form_top . '
			
				' . esc_html( $args['label_username'] ) . '
				
			
			
				' . esc_html( $args['label_password'] ) . '
				
			
			' . $login_form_middle . '
			' . ( $args['remember'] ? ' ' . esc_html( $args['label_remember'] ) . '' : '' ) . '
			
				
				
			
			' . $login_form_bottom . '
		';

	if ( $args['echo'] )
		echo $form;
	else
		return $form;
}

笔记（Notes）