PHP each

1.函数的作用：遍历数组元素

2.函数参数：

　　@params array &$array

3.例子：

<?php
$arr = ['Boy','Girl'];
while(list($key,$value) = each($arr)){
    echo 'key : value => ' .$key. ' : ' .$value;
    echo "
";
    if(mt_rand(0,1) >= 0.5){
        break;
    }
}
$sex = current($arr);
if($sex){
    echo "Hi,Zby! It's a $sex!
";
    echo 'You are kidding me.It must not be a Boy!';
}else{
    echo "It's God Like!";
}