[Luke Redpath]

PHP Code:

$fileArray = file($file);
if (file_exists($file)) 


You need to do the file_exists check before opening it with file, so put $fileArray = file($file) inside your if statement.

PHP Code:

} else {
    echo "Error";    
} 


Always best to try and be a bit more descriptive with your errors, so perhaps "Error: file not found" would be better.

Try this instead of the while loop:

PHP Code:

foreach($fileArray as $line) {
    if(stristr($SearchString, $line)) {
        print htmlentities($line);
    }
}
} 


Have you not considered using the class I posted in my first reply? Its tested, documented and works. Might save you a lot of time, and the implementation is a piece of cake.