How to do PHP reset array to continuous numeric index

Source: Internet
Author: User
This time to bring you how to do PHP reset array as a continuous digital index, so that PHP resets the array as a continuous digital index of the considerations, the following is the actual case, together to see.

For example, a PHP array like this:

$arr = Array (   1 = ' Apple ',   3 = ' banana ',   5 = ' orange ');

You want to convert to an array like this:

$arr = Array (   0 = ' Apple ',   1 = ' banana ',   2 = ' orange ');

1, the recommended way Array_values method

This works for both normal and associative arrays

<?php $arr = Array (   1 = ' Apple ',   3 = ' banana ',   5 = ' orange '), Print_r (Array_values ($arr)); $arr 1 = array (   ' name ' = ' Jerry ',   ' age ' = +,   ' height ' = ' 18cm '); Print_r (Array_values ($arr 1) );

Output Result:

[Root@localhost php]# php array.php  Array (   [0] = Apple   [1] = Banana   [2] = orange) Array (
  [0] = Jerry   [1] [   2] = 18cm)

2. Using the Array_merge method

If the method only gives an array and the array is a numeric index, the key name is re-indexed in a sequential manner. So it can only be applied to numeric indexes.

<?php  $arr = Array (   1 = ' Apple ',   3 = ' banana ',   5 = ' orange ');  Print_r (Array_merge ($arr));  $arr 1 = array (   ' name ' = ' Jerry ',   ' age ' = +,   ' height ' = ' 18cm ');  Print_r (Array_merge ($arr 1));

Output Result:

[Root@localhost php]# php array.php  Array (   [0] = Apple   [1] = Banana   [2] = orange) Array (
  [name] = Jerry   [age] =   [height] = 18cm)

3. Loop traversal

The most primitive way, bloated and not elegant, strongly resisted.

<?php  function Resetarr ($arr) {   $temp = array ();   foreach ($arr as $v) {     $temp [] = $v;   }   return $temp; }  $arr = Array (   1 = ' Apple ',   3 = ' banana ',   5 = ' orange ');  Print_r (Resetarr ($arr));  $arr 1 = array (   ' name ' = ' Jerry ',   ' age ' = +,   ' height ' = ' 18cm ');  Print_r (Resetarr ($arr 1));

Believe that you have read the case of this article you have mastered the method, more exciting please pay attention to the PHP Chinese network other related articles!

Recommended reading:

PHP Operation string Segmentation array

What are the ways to implement a PHP merge array and retain key values?

php implementation prevents SQL injection method summary

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.