Blank lines caused by file reference in Php (UTF-8)

The reference file refers to the blank lines caused by the reference of other files by include and require_once.

This is actually after you use notepad to edit the UTF-8 file, although you still save as UTF-8 format, but the system will automatically add two bom labels to the file, but ie can only ignore one, the other is a blank line.
Solution:

Do not use notepad to edit UTF-8 files, use other tools, such as Dreamw, EmEditor, Visual Studio 2008 and other editing tools to edit UTF-8 files and save.

After editing the two sites in Notepad, there is a blank line on the top. At first, I thought it was a css setting problem and the result was caused by bom marking.

Another way is to use a php function if you use a large number of files.

Copy the following code to a PHP file and run it in the directory where you need to clear the BOM header. Then, you can batch clear the blank first line of PHP, which is awesome.

The code is as follows:

Copy code

<? Php If (isset ($ _ GET ['dir']) {// sets the file directory $ Basedir = $ _ GET ['dir']; } Else { $ Basedir = '.'; }   $ Auto = 1; Checkdir ($ basedir ); Function checkdir ($ basedir ){ If ($ dh = opendir ($ basedir )){ While ($ file = readdir ($ dh ))! = False ){ If ($ file! = '.' & $ File! = '..'){ If (! Is_dir ($ basedir. "/". $ file )){ Echo "filename: $ basedir/$ file". checkBOM ("$ basedir/$ file"). "<br> "; } Else { $ Dirname = $ basedir. "/". $ file; Checkdir ($ dirname );     }      }     }   Closedir ($ dh ); }   }   Function checkBOM ($ filename ){ Global $ auto; $ Contents = file_get_contents ($ filename ); $ Charset [1] = substr ($ contents, 0, 1 ); $ Charset [2] = substr ($ contents, 1, 1 ); $ Charset [3] = substr ($ contents, 2, 1 ); If (ord ($ charset [1]) = 239 & ord ($ charset [2]) = 187 & ord ($ charset [3]) = 191) { If ($ auto = 1 ){ $ Rest = substr ($ contents, 3 ); Rewrite ($ filename, $ rest ); Return ("<font color = red> BOM found, automatically removed. </font> "); } Else { Return ("<font color = red> BOM found. </font> ");   }   }   Else return ("BOM Not Found ."); }   Function rewrite ($ filename, $ data ){ $ Filenum = fopen ($ filename, "w "); Flock ($ filenum, LOCK_EX ); Fwrite ($ filenum, $ data ); Fclose ($ filenum ); }   ?>