php读取html内容

<?php
function getFile($filename) 
{    
	$return = '';    
	if ($fp = fopen($filename, 'rb')) 
	{      
		while (!feof($fp))
		{       
			$return .= fread($fp, 1024);     
		}      
		fclose($fp);      
		return $return;   
	 } 
	else 
	{  
		return false;    
	}  
} 
$body  = getFile('a.html');
$body .="bbbb";
print_r($body);
?>