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PHP removes the bom header from the utf8 file

Source: Internet
Author: User
Tags foreach chr ord php code win32
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Example 1

The code is as follows: Copy code

/**
* Remove the bom header from the file.
* @ Var 0.1
* @ Author Chenwp
*/
Function clearbom ($ contents ){
// Remove the bom header from the text by UTF8
$ BOM = chr (239). chr (187). chr (191 );
Return str_replace ($ BOM, '', $ contents );
}

/**
* Remove the bom header from the file.
* @ Param object $ fileName Description
* @ Return object Description
*/
Function clearfilebom ($ fileName ){
$ C = file_get_contents ($ fileName );
$ C = clearbom ($ c );
File_put_contents ($ fileName, $ c );
}

Example 2

How do I convert the format with BOM files into a non-signed UTF-8 format file? The following is a piece of PHP code:

The code is as follows: Copy code

<? Php

// This file is used to quickly test whether the UTF-8 encoded file is added with BOM and can be automatically removed.

$ Basedir = "."; // modify the directory to be checked for this behavior. The vertex indicates the current directory.
$ Auto = 1; // whether to automatically remove the detected BOM. 1 is yes, 0 is no.

// Do not change the following

If ($ dh = opendir ($ basedir )){
While ($ file = readdir ($ dh ))! = False ){
If ($ file! = '.' & $ File! = '..'&&! Is_dir ($ basedir. "/". $ file) echo "filename: $ file". checkBOM ("$ basedir/$ file"). "<br> ";
       }
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 );
}
// End
?>


 

Example 3

The code is as follows: Copy code


<? Php
// Set the root directory of the BOM to be cleared (all subdirectories and files are automatically scanned)
$ HOME = dirname (_ FILE __);
// If it is a Windows system, change it to: $ WIN = 1;
$ WIN = 0;
?>
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = utf-8"/>
<Title> UTF8 BOM cleaning tool </title>
<Style>
Body {font-size: 10px; font-family: Arial, Helvetica, sans-serif; background: # FFF; color: #000 ;}
. FOUND {color: # F30; font-size: 14px; font-weight: bold ;}
</Style>
</Head>
<Body>
<? Php
$ BOMBED = array ();
RecursiveFolder ($ HOME );
Echo 'Foreach ($ BOMBED as $ utf) {echo $ utf. "<br/> n ";}
Echo '</p> ';
// Recursive scan
Function RecursiveFolder ($ sHOME ){
Global $ BOMBED, $ WIN;
$ Win32 = ($ WIN = 1 )? "\":"/";
$ Folder = dir ($ sHOME );
$ Foundfolders = array ();
While ($ file = $ folder-> read ()){
If ($ file! = "." And $ file! = ".."){
If (filetype ($ sHOME. $ win32. $ file) = "dir "){
$ Foundfolders [count ($ foundfolders)] = $ sHOME. $ win32. $ file;
} Else {
$ Content = file_get_contents ($ sHOME. $ win32. $ file );
$ BOM = SearchBOM ($ content );
If ($ BOM ){
$ BOMBED [count ($ BOMBED)] = $ sHOME. $ win32. $ file;
// Remove BOM information
$ Content = substr ($ content, 3 );
// Write back to the original file
File_put_contents ($ sHOME. $ win32. $ file, $ content );
    }
   }
  }
 }
$ Folder-> close ();
If (count ($ foundfolders)> 0 ){
Foreach ($ foundfolders as $ folder ){
RecursiveFolder ($ folder, $ win32 );
  }
 }
}
// Search for BOM in the current file
Function SearchBOM ($ string ){
If (substr ($ string, 0, 3) = pack ("CCC", 0xef, 0xbb, 0xbf) return true;
Return false;
}
?>
</Body>
</Html>

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
wordpress the field utf8 bom header php utf8 header utf8 php php header utf8 header utf8 bom php

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