JS与PHP向函数传递可变参数的区别实例代码
# JS 调用函数传递可变参数的方法
复制代码 代码如下:
<script> <BR>function test() { <BR> for(var i = 0;i < arguments.length; i++) { <BR> alert(arguments[i]); <BR> } <BR>} <BR>//调用函数 <BR>test(1, 2, 3, 'abc'); <BR></script>
# PHP 调用函数传递可变参数的方法
复制代码 代码如下:
//方法一
//接收一系列参数,并逐一输出
function show_params () {
//获取传递参数的个数
$count = func_num_args();
//遍历参数并逐一输出
for ($i = 0; $i //获取参数
$param = func_get_arg($i);
echo $param . PHP_EOL;
}
}
//调用函数
show_params(1, 2, 'apple', 3.14);
//方法2
function show_params () {
//定义存储传递参数的数组
$params = array();
//获取全部参数
$params = func_get_args();
$count = count($params);
//遍历并逐一输出参数
for ($i = 0; $i echo $params[$i];
echo PHP_EOL;
}
}
//注: 方法2比方法1执行的慢一些

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