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Simple javascript XHR object with fix for missing onreadystatechange event in Firefox (for synchronous calls)

This code fixes the issue in Firefox where the onreadystatechange event is not called for synchronous XHR requests. It is based on the XHConn script from http://xkr.us/code/javascript/XHConn/, patched with the fix documented at http://lukav.com/wordpress/2007/04/12/firefox-firebug-and-synchronos-calls-problem/

/** XHConn - Simple XMLHTTP Interface - bfults@gmail.com - 2005-04-08        **
 ** Code licensed under Creative Commons Attribution-ShareAlike License      **
 ** http://creativecommons.org/licenses/by-sa/2.0/                           **/
/**
 * Modified slightly from original to support synchoronous transactions
 * CDB 2007-05-16, 2007-06-05
 */

function XHConn()
{
	var xmlhttp, bComplete = false;
	try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }
	catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); }
	catch (e) { try { xmlhttp = new XMLHttpRequest(); }
	catch (e) { xmlhttp = false; }}}
	if (!xmlhttp) return null;
	this.connect = function(sURL, sMethod, sVars, fnDone, bAsynch)
	{
		if (!xmlhttp) return false;
		bComplete = false;
		sMethod = sMethod.toUpperCase();

		if (bAsynch == null) bAsynch = true; //treat asynch as an optional argument

		try {
			if (sMethod == "GET")
			{
				xmlhttp.open(sMethod, sURL+"?"+sVars, (bAsynch == true));
				sVars = "";
			}
			else
			{
				xmlhttp.open(sMethod, sURL, (bAsynch == true));
				xmlhttp.setRequestHeader("Method", "POST "+sURL+" HTTP/1.1");
				xmlhttp.setRequestHeader("Content-Type",
					"application/x-www-form-urlencoded");
			}

			xmlhttp.onreadystatechange = function(){
				if (xmlhttp.readyState == 4 && !bComplete)
				{
					bComplete = true;
					fnDone(xmlhttp);
				}
			};
			xmlhttp.send(sVars);

			/**
			 * Firefox <= 2.0.0 doesn't fire onreadystatechange for synchronous requests.
			 * See http://lukav.com/wordpress/2007/04/12/firefox-firebug-and-synchronos-calls-problem/
			 */
			var isGecko = (document.addEventListener) ? true : false;
			try {
				if (!bAsynch && isGecko && xmlhttp.onreadystatechange == null) {
					bComplete = true;
					fnDone(xmlhttp);
					return true;
				}
			}
			catch (e) { return false; }
			/**
			 * End synchronous request patch
			 */
		}
		catch(z) { return false; }
		return true;
	};
	return this;
}

Exception class fix for php 4 //PHP Class

if(!class_exists('Exception')){
	class Exception{
		var $_message = '';
		var $_code = 0;
		var $_line = 0;
		var $_file = '';
		var $_trace = null;

		function Exception($message = 'Unknown exception', $code = 0){
			$this->_message = $message;
			$this->_code = $code;
			$this->_trace = debug_backtrace();
			$x = array_shift($this->_trace);
			$this->_file = $x['file'];
			$this->_line = $x['line'];
		}

		function __construct($message = 'Unknown exception', $code = 0){
			$this->Exception($message, $code);
		}

		function getMessage(){
			return $this->_message;
		}
		function getCode(){
			return $this->_code;
		}
		function getFile(){
			return $this->_file;
		}
		function getLine(){
			return $this->_line;
		}
		function getTrace(){
			return $this->_trace;
		}
		function getTraceAsString(){
			$s = '';
			foreach($this->_trace as $i=>$item){
				foreach($item['args'] as $j=>$arg)
					$item['args'][$j] = print_r($arg, true);
				$s .= "#$i " . (isset($item['class']) ? $item['class'] . $item['type'] : '') . $item['function']
				. '(' . implode(', ', $item['args']) . ") at [$item[file]:$item[line]]\n";
			}
			return $s;
		}
		function printStackTace(){
			echo $this->getTraceAsString();
		}
		function toString(){
			return $this->getMessage();
		}
		function __toString(){
			return $this->toString();
		}
	}
}

Array.indexOf fix //JavaScript Function

Just an idiot fix to increase the number of my posts =b

//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com
[].indexOf || (Array.prototype.indexOf = function(v){
       for(var i = this.length; i-- && this[i] !== v;);
       return i;
});


example

var x = [0,1,2,3];

alert(x.indexOf(2));
alert(x.indexOf(4));

Replace old style PHP tags to new style tags

Sometimes you have to work with scripts that contain old-style PHP tags. This little snippets fixes those scripts, so they use the new style PHP tags.

find * -type f -exec perl -i -wpe 's/<\?php/<\?/g' {} \;
find * -type f -exec perl -i -wpe 's/<\?/<\?php/g' {} \;
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