Get Variable PHP - easy

Hi When a video has the structure: [login to view URL] I want to get the code [login to view URL] For example, when you look at [login to view URL], look at your source code and find this: flashvars.v = 'DY3XYCSH'; I want to get the code DY3XYCSH. And if flashvars.v is empty or less than 3 characters I want to display the original code, in this case would IT2ESBK0. It was working with this code: <?php function get_vlink($dlink){ $rawdata=file_get_contents($dlink); $temp = explode('flashvars.v = "',$rawdata); $temp2 = explode('";',$temp[1]); if (strlen($temp2[0])>3) { return "".$temp2[0]; } else { return $dlink; } } //Example usage: $vlink=get_vlink("[login to view URL]"); echo $vlink; //output: [login to view URL] ?> But today is not working because megavideo change " for '