Which one of the following foreach's is faster? And why?

PHP Code:
foreach($files as $file)
{
         if(
$file != "index.html")
         { 
                 
unlink('uploads/cache/' $file);
         }
}

foreach(
$files as $file)
{
         if(
$file == "index.html") continue;
         
unlink('uploads/cache/' $file);