尝试使用接口及其子类（一个函数）打印数组

Question

我对此php代码有问题，因为我尝试将数组放入实现该接口的类下的函数中，但最终显示错误，表明我尚未声明被调用的函数。

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<p><a href="selection.php">Back to selection php</a>

<?php

interface employee
{
    public function printout($wid, $arr);
}

class worker implements employee
{
    public function printout($wid, $arr)
    {
        for ($i=0; $i<7; $i++) {
        foreach ($arr[$wid][$i] as $val) {
            echo "$val <br>";
        }
    }

    }
}

$temp = new worker();
$id = "60800";
$warr = array();
$warr[$id][0] = "60800";
$warr[$id][1] = "Worker";
$warr[$id][2] = "Wang Mingchun";
$warr[$id][3] = "Day";
$warr[$id][4] = "NT$1000";
$warr[$id][5] = "N/A";
$warr[$id][6] = "N/A";
$temp = printout($id, $warr);

?>

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