Press Ctrl+~ (tilde) to toggle the console.<br>
Move mouse pointer to debug message and make sure that
caller context is NOT inside debug() definition, but
points to debug() calling point.
<hr>
<code><font color="#000000">
<font color="#0000BB">&lt;?php
<br /></font><font color="#FF8000">//&nbsp;Include&nbsp;library&nbsp;code.
<br /></font><font color="#007700">include_once&nbsp;</font><font color="#DD0000">"../../lib/config.php"</font><font color="#007700">;
<br />require_once&nbsp;</font><font color="#DD0000">"Debug/HackerConsole/Main.php"</font><font color="#007700">;
<br />new&nbsp;</font><font color="#0000BB">Debug_HackerConsole_Main</font><font color="#007700">(</font><font color="#0000BB">true</font><font color="#007700">);
<br />
<br /></font><font color="#FF8000">//&nbsp;Dump&nbsp;random&nbsp;structure.
<br /></font><font color="#0000BB">debug</font><font color="#007700">(</font><font color="#0000BB">$_SERVER</font><font color="#007700">);
<br />
<br /></font><font color="#FF8000">//&nbsp;Mediator&nbsp;function&nbsp;for&nbsp;short&nbsp;call&nbsp;of&nbsp;out()&nbsp;method
<br /></font><font color="#007700">function&nbsp;</font><font color="#0000BB">debug</font><font color="#007700">(</font><font color="#0000BB">$msg</font><font color="#007700">)
<br />{
<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">//&nbsp;Use&nbsp;call_user_func_array()&nbsp;to&nbsp;save&nbsp;caller&nbsp;context.
<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">call_user_func</font><font color="#007700">(array(</font><font color="#DD0000">'Debug_HackerConsole_Main'</font><font color="#007700">,&nbsp;</font><font color="#DD0000">'out'</font><font color="#007700">),&nbsp;</font><font color="#0000BB">$msg</font><font color="#007700">);
<br />}
<br /></font><font color="#0000BB">?&gt;
<br /></font>Press&nbsp;Ctrl+~&nbsp;(tilde)&nbsp;to&nbsp;toggle&nbsp;the&nbsp;console.&lt;br&gt;
<br />Move&nbsp;mouse&nbsp;pointer&nbsp;to&nbsp;debug&nbsp;message&nbsp;and&nbsp;make&nbsp;sure&nbsp;that
<br />caller&nbsp;context&nbsp;is&nbsp;NOT&nbsp;inside&nbsp;debug()&nbsp;definition,&nbsp;but
<br />points&nbsp;to&nbsp;debug()&nbsp;calling&nbsp;point.
<br />&lt;hr&gt;
<br /><font color="#0000BB">&lt;?show_source</font><font color="#007700">(</font><font color="#0000BB">__FILE__</font><font color="#007700">)</font><font color="#0000BB">?&gt;</font>
</font>
</code>
<!-- ##################### -->
<!-- ### HackerConsole ### -->
<!-- ##################### -->
<script type="text/javascript" language="JavaScript">//<![CDATA[
/**
 * Debug_HackerConsole_Js: JavaScript frontend for hacker console.
 * (C) 2005 Dmitry Koterov, http://forum.dklab.ru/users/DmitryKoterov/
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * See http://www.gnu.org/copyleft/lesser.html
 *
 * @version 1.x $Id: Js.js 235 2008-03-17 20:53:05Z dk $
 */
 
function Debug_HackerConsole_Js(top) { this.construct(window) }
Debug_HackerConsole_Js.prototype = {
	top: null,
	div: null,
	height: parseInt('400'),  // JS syntax OK
	curHeight: 0,
	step: 0,
	speedOn: 0.3,
	speedOff: 10,
	dt: 50,
	fontsize: 15,
	groups: null,
	scrollTimeout: null,

	construct: function(t) { with (this) {
		top = t || window;
		groups = {};
		if (!top.document.body) {
		    top.document.writeln("<" + "body style='padding:0; margin:0'><" + "/body>");
		}
		with (top.document) {
			if (body.childNodes[0]) {
				div = body.insertBefore(createElement('div'), body.childNodes[0]);
			} else {
				div = body.appendChild(createElement('div'));
			}
			div.className = 'hackerConsole';
			with (div.style) {
				display = 'none';
				background = 'black';
				zIndex = 999999999;
				position = 'relative';
				textAlign = 'left';
				padding = '4px';
				margin = '0px';
				width = '100%';
				maxWidth = (screen.width-30) + 'px';
				height = this.height + 'px';
				overflow = 'auto';
				border = '1px solid black';
				color = '#00EE00';
				font = 'normal ' + this.fontsize + 'px "Courier new", Courier';
			}
			var th = this;
			var owner = window.HTMLElement? window : body;
			var prevKeydown = owner.onkeydown;
			owner.onkeydown = function(e) {
				if (!e) e = window.event;
				if ((e.ctrlKey || e.metaKey) && (e.keyCode == 192 || e.keyCode == 96 || e.keyCode == 191)) {
					th.toggle(-1);
					return false;
				}
				if (prevKeydown) {
					this.__prev = prevKeydown;
					return this.__prev(e);
				}
			}
			toggle(null);
		}
	}},
  
	toggle: function(on, onstart) {
		var cookName = 'hackerConsole';
		if (on == null) on = Math.round(this.getCookie(cookName));
		if (on < 0) on = !Math.round(this.getCookie(cookName));
		if (on) {
			this.curHeight = 0;
			this.step = this.speedOn;
		} else {
			this.curHeight = this.div.style.display!='none'? this.height : 0;
			this.step = -this.speedOff;
		}
		var th = this;
		var fResizer = function() {
			th.div.style.display = on? '' : 'none';
			th.curHeight = th.curHeight + th.height*th.step;
			if (th.curHeight < 0) th.curHeight = 0;
			if (th.curHeight > th.height) th.curHeight = th.height;
			th.div.style.height = (Math.round(th.curHeight)+1) + "px";
			th.div.style.display = '';
			if (th.curHeight <= 1) {
				th.div.style.display = 'none';
				return;
			} else if (th.curHeight >= th.height) {
				return;
			}
			setTimeout(fResizer, th.dt);
		}
		fResizer();
		this.setCookie(cookName, on? 1 : 0, '/', new Date(new Date().getTime()+3600*24*365*1000));
	},
  
 	out: function(msg, title, group) { with (this) {
		if (!msg) return;
		var span = top.document.createElement('div');
		span.innerHTML = msg;
		var container = div;
		if (group) {
			container = groups[group];
			if (!container) {
				var groupDiv = top.document.createElement('div');
				div.appendChild(groupDiv);
				groupDiv.style.marginBottom = "7px";
				var headDiv = top.document.createElement('div');
				groupDiv.appendChild(headDiv);
				headDiv.innerHTML = group + ":";
				headDiv.style.fontWeight = "bold";
				headDiv.style.fontSize = (fontsize+5)+"px";
				container = top.document.createElement('div');
				groupDiv.appendChild(container);
				container.style.marginLeft = "1em";
				container.style.paddingLeft = "4px";
				container.style.borderLeft = "3px double";
				groups[group] = container;
			}
		}
		container.appendChild(span);
		if (scrollTimeout) clearTimeout(scrollTimeout);
		var d = this.div;
		scrollTimeout = setTimeout(function() { d.scrollTop = 10000000 }, 100);
		if (title != null) {
			span.title = title;
			try { span.style.cursor = "pointer"; } catch (e) {}
		}
	}},

	// Функция установки значения cookie.
	setCookie: function(name, value, path, expires, domain, secure) {
	  var curCookie = name + "=" + escape(value) +
	    ((expires) ? "; expires=" + expires.toGMTString() : "") +
	    ((path) ? "; path=" + path : "; path=/") +
	    ((domain) ? "; domain=" + domain : "") +
	    ((secure) ? "; secure" : "");
	  document.cookie = curCookie;
	},
	
	// Функция чтения значения cookie.
	getCookie: function(name) {
	  var prefix = name + "=";
	  var cookieStartIndex = document.cookie.indexOf(prefix);
	  if (cookieStartIndex == -1) return null;
	  var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + prefix.length);
	  if (cookieEndIndex == -1) cookieEndIndex = document.cookie.length;
	  return unescape(document.cookie.substring(cookieStartIndex + prefix.length, cookieEndIndex));
	}
}
window.hackerConsole = window.hackerConsole || window.Debug_HackerConsole_Js && new window.Debug_HackerConsole_Js();
if (window.hackerConsole) setTimeout(function() { with (window.hackerConsole) {
  out('Array[36]<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[DOCUMENT_ROOT]&nbsp;=&gt;&nbsp;/home/dklab/domains/www<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_ACCEPT]&nbsp;=&gt;&nbsp;text/html,application/xhtml+xml,text/xml;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_ACCEPT_CHARSET]&nbsp;=&gt;&nbsp;ISO-8859-1,utf-8;q=0.7,*;q=0.7<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_ACCEPT_ENCODING]&nbsp;=&gt;&nbsp;gzip<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_ACCEPT_LANGUAGE]&nbsp;=&gt;&nbsp;en-us,en;q=0.5<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_CACHE_CONTROL]&nbsp;=&gt;&nbsp;no-cache<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_CONNECTION]&nbsp;=&gt;&nbsp;close<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_COOKIE]&nbsp;=&gt;&nbsp;page_size=1576,704;&nbsp;page_time=0.05<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_HOST]&nbsp;=&gt;&nbsp;www.dklab.ru<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_PRAGMA]&nbsp;=&gt;&nbsp;no-cache<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_USER_AGENT]&nbsp;=&gt;&nbsp;CCBot/1.0&nbsp;(+http://www.commoncrawl.org/bot.html)<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[HTTP_X_CC_ID]&nbsp;=&gt;&nbsp;ccc01-01<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[LANG]&nbsp;=&gt;&nbsp;<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[PATH]&nbsp;=&gt;&nbsp;/sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[REMOTE_ADDR]&nbsp;=&gt;&nbsp;38.107.179.206<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[REMOTE_PORT]&nbsp;=&gt;&nbsp;60860<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SCRIPT_FILENAME]&nbsp;=&gt;&nbsp;/home/dklab/domains/www/lib/Debug_HackerConsole/demo/test/Debug_HackerConsole/t_mediator.php<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SCRIPT_URI]&nbsp;=&gt;&nbsp;http://www.dklab.ru/lib/Debug_HackerConsole/demo/test/Debug_HackerConsole/t_mediator.php<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SCRIPT_URL]&nbsp;=&gt;&nbsp;/lib/Debug_HackerConsole/demo/test/Debug_HackerConsole/t_mediator.php<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SERVER_ADDR]&nbsp;=&gt;&nbsp;217.107.34.104<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SERVER_ADMIN]&nbsp;=&gt;&nbsp;hostmaster@dklab.ru<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SERVER_NAME]&nbsp;=&gt;&nbsp;www.dklab.ru<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SERVER_PORT]&nbsp;=&gt;&nbsp;80<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SERVER_SIGNATURE]&nbsp;=&gt;&nbsp;&lt;ADDRESS&gt;Apache/1.3.34&nbsp;Server&nbsp;at&nbsp;www.dklab.ru&nbsp;Port&nbsp;80&lt;/ADDRESS&gt;\\n<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SERVER_SOFTWARE]&nbsp;=&gt;&nbsp;Apache/1.3.34&nbsp;(Unix)&nbsp;PHP/4.4.4&nbsp;mod_ssl/2.8.16&nbsp;OpenSSL/0.9.7a<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[UNIQUE_ID]&nbsp;=&gt;&nbsp;TzT4H9lrImgAABfo47I<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[GATEWAY_INTERFACE]&nbsp;=&gt;&nbsp;CGI/1.1<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SERVER_PROTOCOL]&nbsp;=&gt;&nbsp;HTTP/1.1<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[REQUEST_METHOD]&nbsp;=&gt;&nbsp;GET<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[QUERY_STRING]&nbsp;=&gt;&nbsp;<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[REQUEST_URI]&nbsp;=&gt;&nbsp;/lib/Debug_HackerConsole/demo/test/Debug_HackerConsole/t_mediator.php<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[SCRIPT_NAME]&nbsp;=&gt;&nbsp;/lib/Debug_HackerConsole/demo/test/Debug_HackerConsole/t_mediator.php<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[PATH_TRANSLATED]&nbsp;=&gt;&nbsp;/home/dklab/domains/www/lib/Debug_HackerConsole/demo/test/Debug_HackerConsole/t_mediator.php<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[PHP_SELF]&nbsp;=&gt;&nbsp;/lib/Debug_HackerConsole/demo/test/Debug_HackerConsole/t_mediator.php<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[argv]&nbsp;=&gt;&nbsp;Array[0]<'+'br /'+'>\n&nbsp;&nbsp;&nbsp;&nbsp;[argc]&nbsp;=&gt;&nbsp;0', 'at ~/lib/Debug_HackerConsole/demo/test/Debug_HackerConsole/t_mediator.php line 8, debug', 'message');
}}, 200);
//]]></script>