1,http://www.pythonclub.org/ (直接打开主页)
结果:
$_SERVER["QUERY_STRING"] = "" $_SERVER["REQUEST_URI"] = "/" $_SERVER["SCRIPT_NAME"] = "/index.php" $_SERVER["PHP_SELF"] = "/index.php"
2,http://www.pythonclub.org/?p=222 (附带查询)
结果:
$_SERVER["QUERY_STRING"] = "p=222" $_SERVER["REQUEST_URI"] = "/?p=222" $_SERVER["SCRIPT_NAME"] = "/index.php" $_SERVER["PHP_SELF"] = "/index.php"
3,http://www.pythonclub.org/index.php?p=222&q=biuuu
结果:
$_SERVER["QUERY_STRING"] = "p=222&q=biuuu" $_SERVER["REQUEST_URI"] = "/index.php?p=222&q=biuuu" $_SERVER["SCRIPT_NAME"] = "/index.php" $_SERVER["PHP_SELF"] = "/index.php" $_SERVER["QUERY_STRING"]获取查询语句,实例中可知,获取的是?后面的值 $_SERVER["REQUEST_URI"] 获取http://www.pythonclub.org后面的值,包括/ $_SERVER["SCRIPT_NAME"] 获取当前脚本的路径,如:index.php $_SERVER["PHP_SELF"] 当前正在执行脚本的文件名
当前url:
"http://".$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF']
总结一下,对于QUERY_STRING,REQUEST_URI,SCRIPT_NAME和PHP_SELF,深入了解将有利于我们 在$_SERVER函数中正确调用这四个值。
通过实例详解$_SERVER函数中 QUERY_STRING,REQUEST_URI,SCRIPT_NAME和PHP_SELF掌握四个变量之间的区别。