PHP progress bar without using JQuery.

<!--searchFileContents CLASS-->
<?php
#class for keyword Search 
class searchFileContents{
	#Declarations of variables
    var $dir_name = '';//The directory to search (root)
    var $search_phrase = '';//The phrase to search in the file contents
	
    var $allowed_file_types = array('txt', 'htm', 'html');//The file types that are searched
    
    var $foundFiles;//Files that contain the search phrase will be stored here
    var $myfiles;// get all the files in all the directories
	    
	#function to search  the phrase with input parameters like 
	#directory name and the phrase to search
    function search($directory, $search_phrase)
	{
        $this->dir_name = $directory;//create a local var for directory
        $this->search_phrase = $search_phrase;// create a local var for phrase
        
		# get all the files in all the directories
		$rDirIter = new RecursiveDirectoryIterator($this->dir_name, FilesystemIterator::SKIP_DOTS);
		$this->myfiles = new RecursiveIteratorIterator ( $rDirIter);//get all the files using the recursive method of php 
		
		#array declaration
        $this->foundFiles = array();
        
		//if search keyword/phrase is empty this code will run
        if ( empty($this->search_phrase) ) die('Please type something to search!');
		
		//if directory is empty this code will run
        if ( empty($this->dir_name) ) die('You must select a directory to search');
        
		#Search the keyword inside the files
        foreach ( $this->myfiles as $f )//get all the files in $f
		{
			#in_array() will check if $allowed_file_types has the extension or not
			#explode() will convert the path into array
			#array_pop() will Pop the element off the end of array, here extension of file
            if ( in_array(array_pop(explode ( '.', $f )),  $this->allowed_file_types) )// search the allowed files only
			{
                $contents = file_get_contents($f);//search the keyword inside the files
                if ( stripos($contents, $this->search_phrase) !== false )					
                    $this->foundFiles [] = $f;					
            }//end of if
        }//end of for
        return $this->foundFiles;
    }//end of function
}//end of class searchFileContents	
?>

<?php	
#Search the keyword 
if($_POST['Submit']=="Submit") 
{ //a search request was made display my search results 
	$SearchQuery = $_POST['txt_query']; #Search keyword 
	$TestPath="C:/intranet/www/Documnet_Search"; 	
	$search = new searchFileContents; 
	$search->search($TestPath, $SearchQuery); 
	
	$narray = array();
	$narray = $search->foundFiles;// use the array to show the result