页面头部出现空白行  非法字符

出现这种原因的是因为页面的编码是UTF-8 + BOM
解决办法
在网站的根目录下建个 b.php

 
// 设定你要清除BOM的根目录(会自动扫描所有子目录和文件)
$HOME = dirname(__FILE__);
// 如果是Windows系统,修改为:$WIN = 1;
$WIN = 0;
?>

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>UTF8 BOM 清除器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>

$BOMBED = array();
RecursiveFolder($HOME);
echo '

These files had UTF8 BOM, but i cleaned them:

'; foreach ($BOMBED as $utf) { echo $utf ."
\n"
; } echo '

'
; // 递归扫描 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; // 移出BOM信息 $content = substr($content,3); // 写回到原始文件 file_put_contents($sHOME . $win32 . $file, $content); } } } } $folder->close(); if(count($foundfolders) > 0) { foreach ($foundfolders as $folder) { RecursiveFolder($folder, $win32); } } } // 搜索当前文件是否有BOM function SearchBOM($string) { if(substr($string,0,3) == pack("CCC",0xef,0xbb,0xbf)) return true; return false; } ?>
body>
html>

运行b.php 它会自动转换
执行完如下图所示
页面头部出现空白行  非法字符_第1张图片

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