php中include require utf-8文件时出现空格
php中使用require函数加载utf8文件的时候会产生一个空行，这是由于在windows环境下编辑文件的时候会产生几个识别utf8的字符，这些字符称为Unicode签名（BOM）。
require 的使用方法如 require("MyRequireFile.php"); 。这个函数通常放在 PHP 程序的最前面，PHP 程序在执行前，就会先读入 require 所指定引入的文件，使它变成 PHP 程序网页的一部份。常用的函数，亦可以这个方法将它引入网页中。
特别是用记事本将网页文件由ANSI另存为UTF-8时易出现！
解决办法：
1. 可以通过在Dreamweaver中按Ctrl+J，在标题与编码中去除此选项；
2. 用EditPlus将文件另存为UTF-8（无BOM）文件。
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