您的位置：首页 > 职场人生

弄到一份 Yahoo! 的 php 面试题 ...

2007-08-14 18:56 519 查看
大家都来测试一下自己的 php 水平咯~~~

-----------------------------------------------------------------------------------------------------

1. Which of the following will not add john to the users array?


1. $users[] = 'john';

2. array_add($users,'john');  //wrong

3. array_push($users,'john');

4. $users ||= 'john'; //wrong


2. What's the difference between sort(), asort() and ksort? Under what circumstances would you use each of these?



my an:sort()-排序 asort()-保持key值排序 ksort()-以key顺序排序 rsort()-逆排序 arsort()-保持key值逆排序 krsort()-以key逆顺序排序

3. What would the following code print to the browser? Why?

$num = 10;

function multiply(){

$num = $num * 10;

}

multiply();

echo $num;

my an:10 because var scope

4. What is the difference between a reference and a regular variable? How do you pass by reference & why would you want to?

5. What functions can you use to add library code to the currently running script?

6. What is the difference between foo() & @foo()?

7. How do you debug a PHP application?

8. What does === do? What's an example of something that will give true for '==', but not '==='?

9. How would you declare a class named “myclass” with no methods or properties?

10. How would you create an object, which is an instance of “myclass”?

11. How do you access and set properties of a class from within the class?

12. What is the difference between include & include_once? include & require?

13. What function would you use to redirect the browser to a new page?

1. redir()

2. header()

3. location()

4. redirect()

my an :2

14. What function can you use to open a file for reading and writing?

1. fget();

2. file_open();

3. fopen();

4. open_file();

my an :3

15. What's the difference between mysql_fetch_row() and mysql_fetch_array()?

16. What does the following code do? Explain what's going on there.

$date='08/26/2003';

print ereg_replace(“([0-9]+)/([0-9]+)/([0-9]+)”,2/1/3,$date);

17. Given a line of text $string, how would you write a regular expression to strip all the HTML tags from it?

18. What's the difference between the way PHP and Perl distinguish between arrays and hashes?

19. How can you get round the stateless nature of HTTP using PHP?

20. What does the GD library do?

21. Name a few ways to output (print) a block of HTML code in PHP?

22. Is PHP better than Perl? – Discuss.
内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 点击这里给我发消息
标签： 
相关文章推荐
新的分享
章节导航