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<?php





/*******************************************************************************

** Class: googleTranslateTool

** Purpose: Translate text using Google language tools

** Filename: googleTranslateTool.class .php

** Author: Gabriel Solomon

** Author Email: solomongaby @ yahoo . com

** Date: 1 July 2008

********************************************************************************/





class  googleTranslateTool{

	

	var $langFrom = false; //language converting from

	

	var $langTo = false;  //language conveting to

	

	var $error = false;

	

	function __construct($langFrom='auto', $langTo='en') {

		

		$this->set_langFrom($langFrom);

		$this->set_langTo($langTo);

	

	}

	

	// Sets the from language in case you want to modify it along the way

	function set_langFrom($langFrom){

		$this->langFrom = $langFrom;

	}

	

	// Sets the to language in case you want to modify it along the way

	function set_langTo($langTo){

		$this->langTo = $langTo;

	}



	function return_langTo() {

		return $this->langTo;

	}

	



	function return_langFrom() {

		return $this->langFrom;

	}	

	

	

	function return_languages(){

		$languages=array();

		$languages['ar'] = 'Arabic';

		$languages['bg'] = 'Bulgarian';

		$languages['zh-CN'] = 'Chinese';

		$languages['hr'] = 'Croatian';

		$languages['cs'] = 'Czech';

		$languages['da'] = 'Danish';

		$languages['nl'] = 'Dutch';

		$languages['en'] = 'English';

		$languages['fi'] = 'Finnish';

		$languages['fr'] = 'French';

		$languages['de'] = 'German';

		$languages['el'] = 'Greek';

		$languages['hi'] = 'Hindi';

		$languages['it'] = 'Italian';

		$languages['ja'] = 'Japanese';

		$languages['ko'] = 'Korean';

		$languages['pl'] = 'Polish';

		$languages['pt'] = 'Portuguese';

		$languages['ro'] = 'Romanian';

		$languages['ru'] = 'Russian';

		$languages['es'] = 'Spanish';

		$languages['sv'] = 'Swedish';	

		

		return $languages;

	}

	

	

	// validates that the 2 languages are in the allowed languages

	function validate_langPair() {

		

		$languages = $this->return_languages();

		$langFrom = $this->return_langFrom();

		$langTo = $this->return_langTo();

		

		if ( is_array($languages) ) {

			

			if ( !empty($langFrom) ) {				

				if ( !isset($languages[$langFrom]) && $langFrom!='auto' ) 

					$this->through_error('langFrom ['.$langFrom.'] is not in the allowed languages');				

			} else $this->through_error('langFrom not set');

			

			if ( !empty($langTo) ) {				

				if ( !isset($languages[$langTo]) ) 

					$this->through_error('langTo ['.$langTo.'] is not in the allowed languages');				

			} else $this->through_error('langTo not set');

			

		} else $this->through_error('Constructor not triggered - Languages array empty');

	}	

	

	

	function through_error( $errorMsg ){

		if ( $this->error===false ) {

			$this->error = $errorMsg;

		}

	}

	

	function return_error(){

		return $this->error;

	}

	

	// return falseif an errro has been set 

	function check_continue( ){

		if ( $this->error===false ) return true;

		else return false;

	}

	

	

	// translate a given text from and to the selecting language

	function translate_Text($text) {

		

		if ( empty($text) ) {			

            $this->through_error('No text specified.');

            return false;

		}

	

		$this->validate_langPair();

		if ( $this->check_continue()===false ) return false; 

		

		

		$url = "http://translate.google.com/translate_t";

		

		$postData=array();

		$postData['text']= $text;

		$postData['langpair'] = $this->langFrom."|".$this->langTo;

		

		$RawHTML = $this->getData_Curl($url,$postData);

		

		$RawHTML = $this->l_cut($RawHTML,'');

		$RawHTML = $this->r_cut($RawHTML,'');

		

		$output = str_replace(" "," ",$RawHTML); //this gets rid of the HTML no break spaces

		

		return strip_tags($output);		

	}

	

	// translate a given URL from and to the selecting language

	function translate_URL($url) {

		

		if ( empty($url) ) {			

            $this->through_error('No URL specified.');

            return false;

		} elseif(!eregi("^(https?://)?(([0-9a-z_!~*'().&=+$%-]+: )?[0-9a-z_!~*'().&=+$%-]+@)?(([0-9]{1,3}\.){3}[0-9]{1,3}|([0-9a-z_!~*'()-]+\.)*([0-9a-z][0-9a-z-]{0,61})?[0-9a-z]\.[a-z]{2,6})(:[0-9]{1,4})?((/?)|(/[0-9a-z_!~*'().;?:@&=+$,%#-]+)+/?)$",$url)) {					

            $this->through_error('Not a valid URL format.');

            return false;

		}

	

		$this->validate_langPair();

		if ( $this->check_continue()===false ) return false; 



		$langpair = $this->langFrom."|".$this->langTo;		

		

		$url='http://66.102.9.104/translate_c?hl=ro&safe=off&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools&langpair='.$langpair.'&u='.urlencode($url);		

		$RawHTML = $this->getData_Curl($url);		

		

		return $RawHTML;

	}



	// Using Curl to fetch the data

    function getData_Curl($url,$postData=false){



        if( !extension_loaded('curl') ){

                $this->through_error('You need to load/activate the cURL extension (http://www.php.net/cURL).');

                return false;

        }



        $curlHandle = curl_init(); // init curl



        // options



		curl_setopt($curlHandle, CURLOPT_COOKIEJAR,"cookie");

		curl_setopt($curlHandle, CURLOPT_COOKIEFILE,"cookie");        

        curl_setopt($curlHandle, CURLOPT_URL, $url); // set the url to fetch

        curl_setopt($curlHandle, CURLOPT_HEADER, 0); // set headers (0 = no headers in result)

        curl_setopt($curlHandle, CURLOPT_RETURNTRANSFER, 1); // type of transfer (1 = to string)

        curl_setopt($curlHandle, CURLOPT_TIMEOUT, 10); // time to wait in 

		curl_setopt($curlHandle, CURLOPT_POST, 0);

		if ( $postData!==false ) {

			curl_setopt($curlHandle, CURLOPT_POSTFIELDS, http_build_query($postData));        

    	}	



        $content = curl_exec($curlHandle); // make the call



        curl_close($curlHandle); // close the connection       

        

    	return $content;

    }		



	function l_cut($text,$search,$offset=0){

		$pos=strpos( $text, $search );	

		if ($pos === false) { $subtext=$text; }

		else { 

			$pos1=$pos+strlen($search)+$offset;

			$subtext=substr($text, $pos1 );

		}	

		return $subtext;

	}	



	function r_cut($text,$search){

		$pos=strpos ( $text, $search );

		if ($pos === false ) return $text;

		else return substr($text, 0 ,$pos );

	}	

 

} 





 ?> 

<?php



require('googleTranslateTool.class .php');



// initiate the translator with the settings from english to spanish, for full language list check the main class  file

$translator = new googleTranslateTool('en','es');



$result = $translator->translate_Text('Hello, this is a test of a translation');



if ( $result===false ) echo $translator->return_error();

else echo $result;



$result = $translator->translate_URL('http://www.yahoo.com/');



if ( $result===false ) echo $translator->return_error();

else echo $result;



 ?>