php basic usage
1.使用逗号链接数据 echo $num."
";
2.弱类型 function foo($var1,$var2){}
function tool(&$var1,&$var3){}可操作外部变量
声明函数,下面就可以直接使用了
3.' ' 跟 " " 的区别,单引号不解析变量,只有是字符。
4. $dir=opendir("image") ; $file=readdir($dir);echo $file;
5.包括当前目录下的文件,如果是html就显示html,是txt就显示txt,是php,就解析php
6. 只包含一次
7.require 静态包含:比如头尾包含比较固定的
include动态包含:就是在函数的结构中可以包含的,比如:include "image/temp.txt";
8.使用'
' '/<pre class="brush:php;toolbar:false">' 可以显示一些原始的格式 <p>9.var_dump and print_r hava the same function ,but var_dum will give the varible information</p> <p>10.</p> <p> </p> <p> </p>

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