Initial version.

git-svn-id: http://plugins.svn.wordpress.org/custom-field-finder/trunk@699760 b8457f37-d9ea-0310-8a92-e5e31aec5664

cff.php

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+<?php
+/*
+ * Plugin Name:	Custom Field Finder
+ * Plugin URI: http://wordpress.org/extend/plugins/custom-field-finder/
+ * Description: Allows you to easily find the custom fields (including hidden custom fields) and their values for a post, page or custom post type post.
+ * Version: 0.1
+ * Author: Joost de Valk
+ * Author URI: http://yoast.com/
+ * License: GPL v3
+ */
+
+class CustomFieldFinder {
+
+	/**
+	 * @var string The hook used for the plugins page.
+	 */
+	var $hook = 'cff';
+
+	/**
+	 * @var string Name used on plugins page and in menu
+	 */
+	var $name = 'Custom Field Finder';
+
+	/**
+	 * Class constructor.
+	 */
+	function __construct() {
+		add_action( 'admin_menu', array( $this, 'register_page' ) );
+	}
+
+	/**
+	 * Register the plugins page, which resides under Tools.
+	 */
+	function register_page() {
+		add_submenu_page( 'tools.php', $this->name, $this->name, 'manage_options', $this->hook, array( $this, 'plugin_page' ) );
+	}
+
+	/**
+	 * Output for the plugin page.
+	 */
+	function plugin_page() {
+		echo '<div class="wrap">';
+		echo '<div id="icon-tools" class="icon32"><br></div>';
+		echo '<h2>' . $this->name . '</h2>';
+
+		echo '<p>Enter a post, page or custom post type ID below and press find custom fields to see the custom fields attached to that post.</p>';
+		echo '<form method="get" action="' . admin_url( 'tools.php?page=' . $this->hook ) . '">';
+		echo '<input type="hidden" name="page" value="' . $this->hook . '"/>';
+		echo '<label for="post_id">Post ID:</label> <input type="text" name="post_id" id="post_id" value="' . ( ( isset( $_GET['post_id'] ) ) ? intval( $_GET['post_id'] ) : '' ) . '"/><br/><br/>';
+		echo '<input type="submit" class="button-primary" value="Find custom fields"/>';
+		echo '</form>';
+		echo '</div>';
+
+		if ( isset( $_GET['post_id'] ) ) {
+			echo '<br/><br/>';
+			$post = get_post( intval( $_GET['post_id'] ) );
+			if ( is_null( $post ) ) {
+				echo 'Post ' . intval( $_GET['post_id'] ) . ' not found.';
+			} else {
+				echo '<h2>Custom fields for post <em>"<a target="_blank" href="' . get_permalink( $post->ID ) . '">' . $post->post_title . '</a>"</em></h2>';
+				$customs = get_post_custom( $post->ID );
+				if ( count( $customs ) > 0 ) {
+					ksort( $customs );
+					echo '<p>Note that custom fields whose key starts with _ will normally be invisible in the custom fields interface.</p>';
+					echo '<style>#cffoutput { max-width: 600px; } #cffoutput pre { margin: 0 } #cffoutput th, #cffoutput td { text-align: left; vertical-align: text-top; margin: 0; padding: 2px 10px; } #cffoutput tr:nth-child(2n) { background-color: #eee; }</style>';
+					echo '<table id="cffoutput" cellspacing="0" cellpadding="0">';
+					echo '<thead><tr><th width="40%">Key</th><th width="60%">Value(s)</th></tr></thead>';
+					echo '<tbody>';
+					foreach ( $customs as $key => $val ) {
+						echo '<tr>';
+						echo '<td>' . esc_html( $key ) . '</td><td>';
+						if ( count( $val ) === 1 ) {
+							$val = maybe_unserialize( $val[0] );
+							if ( !is_array( $val ) )
+								echo esc_html( $val );
+							else
+								echo '<pre>' . esc_html( print_r( $val, 1 ) ) . '</pre>';
+						} else {
+							foreach ( $val as $v ) {
+								echo esc_html( $v ) . '<br/>';
+							}
+						}
+						echo '</td></tr>';
+						echo '</tr>';
+					}
+					echo '</tbody></table>';
+				} else {
+					echo '<p>No custom fields found for post ' . $post->ID . '.</p>';
+				}
+			}
+		}
+	}
+
+}
+
+$yoast_cff = new CustomFieldFinder();

readme.txt

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+=== Custom Field Finder ===
+Contributors: joostdevalk
+Donate link: http://yoast.com/donate/
+Tags: custom fields
+Requires at least: 3.0
+Tested up to: 3.6
+Stable tag: 0.1
+License: GPLv3
+License URI: http://www.gnu.org/licenses/gpl-3.0.html
+
+Allows you to easily find the custom fields (including hidden custom fields) and their values for a post, page or custom post type post.
+
+== Description ==
+
+Allows you to easily find the custom fields (including hidden custom fields) and their values for a post, page or custom
+post type post.
+
+Just go to Tools -> Custom Field Finder, enter the post ID of any post and you'll see all the custom fields, including
+the ones that start with an underscore ( _ ) that are normally hidden from the custom fields interface.
+
+== Installation ==
+
+1. Upload `cff.php` to the `/wp-content/plugins/` directory
+1. Activate the plugin through the 'Plugins' menu in WordPress
+1. Go to Tools -> Custom Field Finder
+
+== Screenshots ==
+
+1. Shows the plugin and its menu location without having entered a post ID.
+2. Shows some sample plugin output.
+
+== Changelog ==
+
+= 0.1 =
+
+* Initial version.
+