php跨平台总结 常用预定义常量

 

<?php
echo PHP_EOL;   //win \r\n mac \r linux \n
echo DIRECTORY_SEPARATOR; // /
echo PHP_SHLIB_SUFFIX;    // so
echo PATH_SEPARATOR;      // :

// Win*
echo DIRECTORY_SEPARATOR; // \
echo PHP_SHLIB_SUFFIX;    // dll
echo PATH_SEPARATOR;      // ;
define('DS', DIRECTORY_SEPARATOR);
define('PS', PATH_SEPARATOR);
$text = str_replace(array("\n", "\r", "\r\n"), "", $text);
?> 

得到操作系统类型

if ( strtoupper ( substr (PHP_OS, 0, 3)) ===  'WIN' ) {}