smarty/tests/UnitTests/SmartyMethodsTests/RegisterModifier/RegisterModifierFirstClassCallablesTest.php

<?php

/**
 * class for register modifier with (first class) callables tests
 *
 * @runTestsInSeparateProcess
 * @preserveGlobalState disabled
 * @backupStaticAttributes enabled
 */
class RegisterModifierFirstClassCallablesTest extends PHPUnit_Smarty
{
	public function setUp(): void
	{
		// First-class callable syntax (Closure::fromCallable shorthand) requires PHP 8.1+
		if (PHP_VERSION_ID < 80100) {
			$this->markTestSkipped('First-class callables require PHP >= 8.1');
		}
		$this->setUpSmarty(__DIR__);
	}



	public function testRegisterFirstClassCallable()
	{
		$this->smarty->registerPlugin(\Smarty\Smarty::PLUGIN_MODIFIER, 'testmodifier', eval('return strrev(...);'));
		$this->assertEquals('mosredna', $this->smarty->fetch('string:{"andersom"|testmodifier}'));
	}

	public function testRegisterFirstClassCallableSameName()
	{
		$this->smarty->registerPlugin(\Smarty\Smarty::PLUGIN_MODIFIER, 'mymodifier', eval('return strrev(...);'));
		$this->assertEquals('mosredna', $this->smarty->fetch('string:{"andersom"|mymodifier}'));
	}

	public function testRegisterFirstClassCallableAsFunc()
	{
		$this->smarty->registerPlugin(\Smarty\Smarty::PLUGIN_MODIFIER, 'kprint_r_out', eval('return strrev(...);'));
		$this->smarty->assign('myVar', 'andersom');
		$this->assertEquals('mosredna', $this->smarty->fetch('string:{kprint_r_out($myVar)}'));
	}

	public function testRegisterFirstClassCallableSameNameAsPhpFunc()
	{
		$this->smarty->registerPlugin(\Smarty\Smarty::PLUGIN_MODIFIER, 'mymodifierfcc', eval('return strrev(...);'));
		$this->assertEquals('mosredna', $this->smarty->fetch('string:{mymodifierfcc("andersom")}'));
	}

}

function mymodifierfcc($a, $b, $c)
{
	return "$a function $b $c";
}