Interview questions a friend asked when applying for a job at Sina Leju

Interview questions a friend asked when applying for a job at Sina Leju_PHP Tutorial

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Release： 2016-07-21 14:55:10

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The following are the written test questions he recalled at that time

1.

1. There is the following HTML: aaaa
1) Use js to obtain the ________ method to obtain the object;
2) Use the ________ attribute to obtain the attribute value of the attribute title;
3) Use the ________ method to obtain the attribute sina_title attribute value;
2. The functions for array serialization and deserialization in PHP are ______ and _______ respectively;
3. The difference between rawurlencode and urlencode functions is ____________________;
4. The function for filtering HTML in PHP is _______, and the function for escaping is ____________;
5. Write a regular expression to filter out js scripts in HTML;
6. The meaning of LEFT JOIN in SQL is ______________ ;
If there is a table tl_user that stores student ID and name, and another table tl_score that stores student ID, subject and score (some students do not have test scores), write a sql statement to print out the student's name and the total number of each subject. Results;
7. Write three functions that call system commands;
8. Josn’s function for processing arrays is;
9. The function to determine whether a variable is set in PHP is _______; determine whether it is Empty ones are___________;
10. The difference between error_reporting("E_ALL") and ini_set("display_errors", "on")_________;
11. PHP writes predefined variables that display the client IP_ _______; The one that provides the source URL is __________;
12. The function that converts utf-8 to gbk in php is ___________;
13. The function __________ that splits strings into arrays in php is composed of connection numbers. String is_______;
14. How to use static methods of classes in php_______________________________;

2.
1. What is the reason for the following error: mysql server not go away? (This is probably the case)
2. The difference between mysql’s static tables and dynamic tables, and the difference between MyISAM and InnoDB.
3. $a = 1; $b = & $a;
unset($ a), is $b still 1, why?
unset($b), is $a still 1, why?

3.
1. Write at least three functions, take the suffix of the file name, such as the file '/as/image/bc.jpg', and get jpg or .jpg.
2. Write a function to calculate the relative paths of two files, such as $a = '/a/b/c/d/e.php'; $b = '/a/b/12/34/c. php'; Calculate the phase path of $b relative to $a.
3. Use the binary method (also called the halving search method) to find an element. The object can be an ordered array.
$array = array(1,3,5,9,11,23,45,68,78,95,112,235,452);
function binary($array, $search){