[PHP] 纯文本查看 复制代码 function t1($a1,$a2,$a3=""){
echo "$a1,$a2,$a3<br/>";
function wef(){
echo "php支持闭包,爽<br/>";
}
wef();
}
echo t1(1,2,"234234");
var_dump(function_exists(ss));
echo "<br/>";
//变量的范围 lybide
$url="www.sina.com.cn<br/>";
function ht1(){
//$url="sadfwef";
global $url;
static $i;//静态变量,变量共享
$i++;
echo "<div style=\"border: 1px solid #FF0000;\">$url==$i</div>";
unset($url);//删除全局变量
return $url;
}
ht1();
ht1();
ht1();
ht1();
ht1();
ht1();
echo $url;
//按值传递 xxx($name),按址传递 xxx(&$name)
//function 可接收多个参数 func_get_args();
/*echo "<pre>";
print_r($GLOBALS);
echo "</pre>";*/
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