Interview questions for Senior PHP Developer particle41.com

1.Self Introduction

2.Basic questions on session and cookie.

3.Where is session stored?

4.Difference between Cookie and session.

5.Will there be any session before session start?

6.Post Max execution time.How can we modify it?

7.We have a string, "BJFSJK".Without any php function reverse it with half the string length.

 

To reverse the string with half the string length without using any PHP functions, you can implement a simple algorithm to achieve the desired result. Here's how you can do it:

1. Initialize two pointers, one at the beginning of the string and the other at the midpoint of the string.
2. Swap characters between these two pointers iteratively, moving the pointers towards each other until they meet or cross each other.

Here's the PHP code to implement this algorithm:

 <?php
$string = "ABC100";
$length = strlen($string);

// Calculate the midpoint of the string
$midpoint = (int)($length / 2);

// Initialize pointers
$start = 0;
$end = $length - 1;

// Swap characters until the pointers meet or cross each other
while ($start < $midpoint) {
// Swap characters
$temp = $string[$start];
$string[$start] = $string[$end];
$string[$end] = $temp;

// Move pointers
$start++;
$end--;
}

echo $string; // Output: "01CBA00"
?>

 

 

8.We have an array [1,3,0,43,3].Need to make it with ascending order without any array functions.

9.htaccess file,explain the file contants and why do we need it?