How to simplify setting php project path

简化设置php项目路径的方法：【header("Content-type:text/html;charset=utf-8");$webrootpath = $_SERVER[‘DOCUMENT_ROOT‘];$easywebroo...】。

本文操作环境：windows10系统、php 7、thinkpad t480电脑。

下面是简化php项目路径的具体设置，能兼容所有的操作系统，一起来看下吧。

header("Content-type:text/html;charset=utf-8");
//服务器根目录
$webrootpath = $_SERVER[‘DOCUMENT_ROOT‘];
//简洁获取服务器根目录
$easywebrootpath = "$DOCUMENT_ROOT\\DEMO\\20150418\\ss.txt";
//当前文件夹目录，证明正斜杠和反斜杠在windows下混合使用没问题
$dirnamepath = dirname(__FILE__).‘/ss.txt‘;
//因为windows可以反斜杠和正斜杠，其他系统只能用正斜杠，正斜杠兼容所有系统，所以把所有反斜杠替换为正斜杠
$newwebrootpath = str_replace("\\","/", $easywebrootpath);
$fp =fopen($newwebrootpath, ‘a‘);
fwrite($fp, "你好");
fclose($fp);
echo ‘
$webbrootpath
‘;
echo "
$$webrootpath
";
echo $webrootpath."";
echo $easywebrootpath.‘‘;
echo $dirnamepath.‘‘;
echo "正斜杠：".$newwebrootpath;

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