WHAT DOES THIS MEAN

[zeusthegreat]

function upload($file_id, $folder="", $types="") { if(!$_FILES[$file_id]['name']) return array('','No file specified'); $file_title = $_FILES[$file_id]['name']; //Get file extension $ext_arr = split("\.",basename($file_title)); $ext = strtolower($ext_arr[count($ext_arr)-1]); //Get the last extension //Not really uniqe - but for all practical reasons, it is $uniqer = substr(md5(uniqid(rand(),1)),0,5); $file_name = $uniqer . '_' . $file_title;//Get Unique Name $all_types = explode(",",strtolower($types)); if($types) { if(in_array($ext,$all_types)); else { $result = "'".$_FILES[$file_id]['name']."' is not a valid file."; //Show error if any. return array('',$result); }

}

 

 

 

 

WHAT I MEAN IS if(!$_FILES[$file_id]['name']) return array('','No file specified'); WHAT DOES THE EXCLAMATION MARK MEAN BEFORE $_FILES

 

HAVE GOOGLED AND I GET DIFFERENT ANSWERS, SO THOUGHT I WOULD ASK SOMEBODY WHO WOULD KNOW FOR CERTAIN

[falkencreative]

The "!" indicates that the if statement checks for a false result. In this case, that particular statements reads "if $_FILES[$file_id]['name'] == false, return the array(...).

 

Make sense?