d7_edit_link.php

<?php

	/**
	 * Creates an admin edit post link. Can be a custom link to something like an admin page,
	 * ACF options page, or the default post_edit_link
	 *
	 * @param $page 	type|string/int	For a string, a php page like nav-menus.php, or the slug of an options page
 	 * 									which will result in admin.php?page= being put before the slug.
 	 *									In either case wp-admin/ is prepended.
 	 *									A post ID can also be supplied for a default edit_post_link
 	 *
 	 * @param $target 		type|string The ID to skip to on the edit page, like a field group.
 	 *									Don't use a '#' in front of the ID.
 	 * 									Note: this can also be a query string argument, but DO include
 	 *									the '?' first.
	 *
	 *
	 * @param $label 	type|string 	The link's text label. Default: 'Edit'
	 *
	 * @return string 					Html of edit link
	 * @todo Add param for specifying user privleage 
	 *
	 */
	function d7_get_edit_link($page = false, $target = false, $label = 'Edit') {

		$link = false;
		$output = false;

		if ( current_user_can('activate_plugins') ) {

			// If a page hasn't been provided, just do edit_post_link
			if ( !$page ) {

				$id = get_the_ID();

				// Only do this if the ID isn't 1
				if ( $id && $id !== 1 ) {
					$link = get_edit_post_link($id);
				}

			}

			// If an edit page has been provided
			if ( $page ) {

				// If $page is a post ID, do a get_edit_post_link
				if ( is_int($page) ) {
					$link = get_edit_post_link($page);
				} else {

					// Figure out if a .php link has been given or not
					$parts = explode('.', $page);

					// Yes, php
					if ( count($parts) > 0 && end($parts) == 'php' ) {
						$link = 'wp-admin/' . $page;
					} else {
						// This is an options page
						$link = 'wp-admin/admin.php?page=' . $page;
					}

					// Final URL
					$link = get_bloginfo('url') . '/' . $link;

				}

			}

			// If a target id (probably an ACF field group) has been provided
			if ( $target ) {

				// Only add a # if the target doesn't start with a ?
				if ( substr($target, 0, 1) != '?' ) {
					$link .= '#';
				}

				$link .= $target;

			}

			if ( $link ) {
				$output = '<a href="' . $link . '" class="post-edit-link">' . $label . '</a>';
			}

			return $output;

		} else {
			return false;
		}

	}


	function d7_edit_link($page = false, $target = false, $label = 'Edit') {

		$link = d7_get_edit_link($page, $target, $label);
		if ( $link ) {
			echo $link;
		}

	}