PHP Stop warnings for 1 line of code - php

Question

I have the following Warnings which SHOULD be there, but is there a way to stop them writting to the page without actually disabling Warnings globally?
Warnings:
Warning: file_get_contents(E:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(F:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(G:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(H:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(I:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(J:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(K:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(L:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(M:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(N:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(O:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
Warning: file_get_contents(P:/connected.txt): failed to open stream:
No such file or directory in C:\xampp\htdocs\ppa\test.php on line 19
PHP Function:
//Check if the connection file is present on each drive
function scanDrives() {
//Possible drives
$letters = "DEFGHIJKLMNOP";
$letters = str_split($letters);
$code = md5("FMbHSBTMTXhu3TWp");
//Check for a certain file on each device
foreach($letters as $x) {
$file = file_get_contents($x.":/connected.txt"); //This is what causes the error as the file can't be found.
if ($file != false) {
$file_code = split(":", $file);
//Check if the file has the correct pass code
if($file_code[0] == $code) {
//Successful, return pass value and device letter and set name
echo (1).",".$x.",".$file_code[1];
}
}
}
}
Thanks.

Answer 1

Don't just blindly open the file with file_get_contents. Check to see if it exists first.
if(file_exists($x.":/connected.txt")){
$file = file_get_contents($x.":/connected.txt");
// ...
}

Answer 2

I agree with #Rocket Hazmat,
but to answer your question - in PHP you can use Error Control operators .. Specifically you can use the # sign to ignore errors.
Simple Example
$file = #file_get_contents("file_doesnt_exist.php"); // wont throw any errors.

Answer 3

Try to put "#" before the function that gives you the warning!
http://us3.php.net/manual/en/language.operators.errorcontrol.php