How to convert PascalCase to pascal_case?

Question

If I had:

$string = \"PascalCase\";

I need

\"pascal_case\"

Does PHP offer a function for this purpose?

Answer 1

If you are not using Composer for PHP you are wasting your time.

composer require doctrine/inflector

use Doctrine\Inflector\InflectorFactory;

// Couple ways to get class name:

// If inside a parent class
$class_name = get_called_class();

// Or just inside the class
$class_name = get_class();

// Or straight get a class name
$class_name = MyCustomClass::class;

// Or, of course, a string
$class_name = 'App\Libs\MyCustomClass';

// Take the name down to the base name:
$class_name = end(explode('\\', $class_name)));

$inflector = InflectorFactory::create()->build();

$inflector->tableize($class_name); // my_custom_class

https://github.com/doctrine/inflector/blob/master/docs/en/index.rst