UnderscoreNamingStrategy

Laminas\Hydrator\NamingStrategy\UnderscoreNamingStrategy converts snake case strings (e.g. foo_bar_baz) to camel-case strings (e.g. fooBarBaz) and vice versa.

Basic Usage

$namingStrategy = new Laminas\Hydrator\NamingStrategy\UnderscoreNamingStrategy();

echo $namingStrategy->extract('foo_bar'); // outputs: foo_bar
echo $namingStrategy->extract('Foo_Bar'); // outputs: foo_bar
echo $namingStrategy->extract('FooBar'); // outputs: foo_bar

echo $namingStrategy->hydrate('fooBar'); // outputs: fooBar
echo $namingStrategy->hydrate('FooBar'); // outputs: fooBar
echo $namingStrategy->hydrate('Foo_Bar'); // outputs: fooBar

This strategy can be used in hydrators to dictate how keys should be mapped.

class Foo
{
    public $fooBar;
}

$hydrator = new Laminas\Hydrator\ObjectPropertyHydrator();
$hydrator->setNamingStrategy(new Laminas\Hydrator\NamingStrategy\UnderscoreNamingStrategy());

$foo = new Foo();
$hydrator->hydrate(['foo_bar' => 123], $foo);

print_r($foo); // Foo Object ( [fooBar] => 123 )
print_r($hydrator->extract($foo)); // Array ( [foo_bar] => 123 )