php学习笔记

1. 包含文件：

text.txt当中的内容是: sonikk

include(dirname(__FILE__)."\\text.txt");


include(".\\text.txt");


include("./text.txt");

实验：

text.php当中的内容是: sonikk

<?php

$a = true;
if( $a )
{
	require("./text.php"); echo "<br/>";
	require_once("./text.php"); echo "<br/>";
}


if($a)
{
	include_once("./text.php"); echo "<br/>";
	include_once("./text.php"); echo "<br/>";
}

?>

输出结果只有一个sonikk

2. escape

echo <<<EOD
<?xml version="1.0"?>
...all sorts of XML goes here...
Nothing will affect the output of this code until:
EOD;