How to output an array in php

Similar to the creation of an array, there are three ways to display the output of an array.

1. for loop (recommended learning: PHP video tutorial)

<?php
    $ms_office = array(
        &#39;word&#39;,
        &#39;excel&#39;,
        &#39;outlook&#39;,
        &#39;access&#39;
    );
 
    for($i=0; $i<4; $i++)
    {
        echo "数组第".($i+1)."个元素是：";
        echo $ms_office[$i];
        echo "<br>";
    }
?>

数组第1个元素是：word
数组第2个元素是：excel
数组第3个元素是：outlook
数组第4个元素是：access

Suddenly One of the interesting things about PHP is that after it uses $ to define a variable, no matter where you go, as long as you use the variable, the variable name will be preceded by $.

2. Use the foreach loop statement

<?php
    $ms_office = array(
        &#39;word&#39;,
        &#39;excel&#39;,
        &#39;outlook&#39;,
        &#39;access&#39;
    );
    foreach($ms_office as $software)
    {
        echo $software;
        echo "<br>";
    }
?>

word
excel
outlook
access

defines an array without specifying its index, so the default integer form is used.

3. Use print_r() to display array elements

<?php
$ms_office = array(
&#39;word&#39;,
&#39;excel&#39;,
&#39;outlook&#39;,
&#39;access&#39;
);
print_r($ms_office);
?>

Array ( [0] => word [1] => excel [2] => outlook [3] => access )

Add echo "

"; in front of print_r() to get an array structure with a clearer format. </p><p>You can also add code to output the end tag "

" after print_r().

Array
(
[0] => word
[1] => excel
[2] => outlook
[3] => access
)

HTML tag

 can define pre-formatted text. <pre class="brush:php;toolbar:false">

You can display the spaces, carriage returns, line feeds, and Tab keys in the text between them, that is, display them according to the original layout of the text.

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