twigHow to create a function using PHP and Twig?

Creating a function using PHP and Twig is a simple process. The following example code block shows how to create a function that takes a string as an argument and returns the string with the first letter capitalized:

<?php
$twig->addFunction(
    new Twig_SimpleFunction('capitalize', function ($string) {
        return ucfirst($string);
    })
);

The output of this code would be the string with the first letter capitalized:

Input: hello
## Output example
 Hello

The code consists of the following parts:

1. $twig->addFunction: This is a method of the Twig class that adds a function to the Twig environment.
2. new Twig_SimpleFunction: This creates a new Twig_SimpleFunction object, which is used to create a function.
3. 'capitalize': This is the name of the function.
4. function ($string): This is the function definition, which takes a string as an argument.
5. return ucfirst($string): This is the code that is executed when the function is called. It returns the string with the first letter capitalized.

Helpful links

• Twig Documentation
• PHP Documentation

Edit this code on GitHub