themes_functions-php.part.php

themes_functions-php.part.php

<?php

/**
 * Remove forgetmenot-checkbox on login screen
 * Uses the hook 'after_theme_setup' instead of 'plugins_loaded' because
 * first the theme have to be setup for get_template_directory_uri()
 *
 * @uses add_action()
 * @hook after_setup_theme
 */
add_action(
	'after_setup_theme',
	'WPSE77581_remove_forgetmenot',
	10,
	0
);

/**
 * Hook up all actions and filters
 *
 * @uses add_action()
 * @hook login_enqueue_scripts
 * @hook login_head
 * @hook login_footer
 */
function WPSE77581_remove_forgetmenot() {

	// add JavaScript
	add_action( 'login_enqueue_scripts', 'WPSE77581_enqueue_script', 10, 0 );

	// plain PHP with outputbuffering
	add_action( 'login_head', 'WPSE77581_start_outputbuffer', 1, 0 );
	add_action( 'login_footer', 'WPSE77581_end_outputbuffer', 1, 0 );

}

/**
 * Enqueueing needed JavaScripts
 * JS is stored in the folder 'js' inside the theme folder
 *
 * @uses wp_enqueue_script
 * @uses get_template_directory_uri()
 */
function WPSE77581_enqueue_script() {

	wp_enqueue_script(
		'WPSE77581-remove-forgetmenot',
		get_template_directory_uri() . '/js/wpse77581.js',
		array( 'jquery' ),
		false,
		true
	);

}

/**
 * Start outputbuffering
 * Buffers the DOM for later manipulation
 */
function WPSE77581_start_outputbuffer() {

	ob_start();

}

/**
 * End outputbuffering
 * Get the content from outputbuffer and remove the paragraph with checkbox
 */
function WPSE77581_end_outputbuffer() {

	$html = ob_get_clean();

	$search = '#<p class="forgetmenot">.+</p>#Uuis';

	$html = preg_replace( $search, '', $html );

	echo $html;

}