In this post, we are going to write a simple script of how to reverse the PHP array values without using any PHP Native Array Functions.
These kinds of questions have been asked in Interviews, so it is better to know this beforehand.
If you don’t know the native function to reverse a PHP array, here it is array_reverse(), so we are not going to use this. Also, we are not going to use any other PHP Array functions such as count() as well.
Here is the complete PHP Example script shows how to reverse PHP array values without using array_reverse():
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<?php $orig_arr = [10,20,30,40,50]; $temp = []; //find the length of an array without using native function count() $len = 0; foreach ($orig_arr as $arr) { $len++; } //loop through the array values in reverse for ($i = ($len - 1); $i >=0; $i--) { //store the array values in reverse $temp[] = $orig_arr[$i]; } //now we have the reversed array values print_r($temp); ?> |
Just go through the comments in the above script to understand how it works. I Hope this helps!
