Today, the editor will share with you the relevant knowledge points about whether PHP supports index arrays or not. The content is detailed and the logic is clear. I believe that most people still know this knowledge too well, so I share this article for your reference, I hope you can read it After finishing this article, I have gained something, let's take a look at it together.

PHP supports indexed arrays; indexed arrays are also called numeric arrays, which are represented by an index number by default. All elements of an array are represented by an index number starting from 0. An indexed array can store numbers, strings, or any object. Use "$array=array("array element","array element"...);" to define the index array.

The operating environment of this article: Windows10 system, PHP8.1 version, Dell G3 computer

PHP supports indexed arrays

A PHP index array is an array, represented by an index number by default. All elements of an array are represented by 0-based index numbers.

PHP indexed arrays can store numbers, strings or any object. PHP indexed arrays are also known as numeric arrays.

Definition There are two ways to define an indexed array:

The first way:

$size= array ( "Big" , "Medium" , "Short" );

The second way:

$size[ 0 ]= "Big" ;   $size[ 1 ]= "Medium" ;   $size[ 2 ]= "Short" ;

PHP Index Array Example

<?php   $size =array( "Big" , "Medium" , "Short" );   echo  "Size:  $size [0],  $size [1] and  $size [2]" ;   ?>

Output result:

File: array2.php

<?php   $size [0]= "Big" ;   $size [1]= "Medium" ;   $size [2]= "Short" ;   echo  "Size:  $size [0],  $size [1] and  $ size [2]" ;   ?>

Output result:

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