How to use function in Class in PHP file - php

Question

I'm developing a website for my project.
My folder structure looks like this:
/testingSite
/src
/WordBreaker.php
/index.php
I have a problem when using a function in WordBreaker.php
Here is how the function is defined in WordBreaker.php
<?php
class WordBreaker
{
function breakIntoWords($text)
{
$ranges = $this->breakIntoRanges($text);
$textList = $this->rangesToTextList($text, $ranges);
return $textList;
}
}
?>
And here is where I want to use a function (in index.php)
<?php
include "src/WordBreaker.php";
$instance = new WordBreaker ();
if ( isset( $_POST['btnSubmit'] ) ) {
$result = $instance->breakIntoWords($input);
}
?>
When I test the site, the error occur
Fatal error: Class 'WordBreaker' not found in C:\xampp\htdocs\testingSite\index.php on line 4
What should I do?

Answer 1

Use require_once instead of include
<?php
require_once("src/WordBreaker.php");
$instance = new WordBreaker ();
if ( isset( $_POST['btnSubmit'] ) ) {
$result = $instance->breakIntoWords($input);
}
?>
or you can add an autoloader function
<?php
function __autoload($class_name) {
require_once $class_name . '.php';
}
$vars = new IUarts();
print($vars->data);
?>

Answer 2

You can include it using DIR
require __DIR__."/src/WordBreaker.php";
$instance = new WordBreaker();
_ DIR _ is 'magical' and returns the directory of the current file without the trailing slash.
" If used inside an include, the directory of the included file is returned. This is equivalent to dirname(_ FILE _). This directory name does not have a trailing slash unless it is the root directory."