1.函数的作用：遍历数组元素

2.函数参数：

　　@params array &$array

3.例子：

1 
      ' .$key. ' : ' .$value; 5     echo "\n"; 6     if(mt_rand(0,1) >= 0.5){ 7         break; 8     } 9 }10 $sex = current($arr);11 if($sex){12     echo "Hi,Zby! It's a $sex!\n";13     echo 'You are kidding me.It must not be a Boy!';14 }else{15     echo "It's God Like!";16 }