PHP code example of nette / php-generator

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

nette / php-generator example snippets

$class = new Nette\PhpGenerator\ClassType('Demo');

$class
	->setFinal()
	->setExtends(ParentClass::class)
	->addImplement(Countable::class)
	->addComment("Class description.\nSecond line\n")
	->addComment('@property-read Nette\Forms\Form $form');

// generate code simply by typecasting to string or using echo:
echo $class;

/**
 * Class description
 * Second line
 *
 * @property-read Nette\Forms\Form $form
 */
final class Demo extends ParentClass implements Countable
{
}

$printer = new Nette\PhpGenerator\Printer;
echo $printer->printClass($class);

$class->addConstant('ID', 123)
	->setProtected() // constant visibility
	->setType('int')
	->setFinal();

$class->addProperty('items', [1, 2, 3])
	->setPrivate() // or setVisibility('private')
	->setStatic()
	->addComment('@var int[]');

$class->addProperty('list')
	->setType('?array')
	->setInitialized(); // outputs '= null'

final protected const int ID = 123;

/** @var int[] */
private static $items = [1, 2, 3];

public ?array $list = null;

$method = $class->addMethod('count')
	->addComment('Count it.')
	->setFinal()
	->setProtected()
	->setReturnType('?int') // return types for methods
	->setBody('return count($items ?: $this->items);');

$method->addParameter('items', []) // $items = []
	->setReference()           // &$items = []
	->setType('array');        // array &$items = []

/**
 * Count it.
 */
final protected function count(array &$items = []): ?int
{
	return count($items ?: $this->items);
}

$method = $class->addMethod('__construct');
$method->addPromotedParameter('name');
$method->addPromotedParameter('args', [])
	->setPrivate();

public function __construct(
	public $name,
	private $args = [],
) {
}

$method = new Nette\PhpGenerator\Method('getHandle');
$property = new Nette\PhpGenerator\Property('handle');
$const = new Nette\PhpGenerator\Constant('ROLE');

$class = (new Nette\PhpGenerator\ClassType('Demo'))
	->addMember($method)
	->addMember($property)
	->addMember($const);

$methodCount = $class->getMethod('count');
$methodRecount = $methodCount->cloneWithName('recount');
$class->addMember($methodRecount);

$interface = new Nette\PhpGenerator\InterfaceType('MyInterface');
$trait = new Nette\PhpGenerator\TraitType('MyTrait');

$class = new Nette\PhpGenerator\ClassType('Demo');
$class->addTrait('SmartObject');
$class->addTrait('MyTrait')
	->addResolution('sayHello as protected')
	->addComment('@use MyTrait<Foo>');
echo $class;

class Demo
{
	use SmartObject;
	/** @use MyTrait<Foo> */
	use MyTrait {
		sayHello as protected;
	}
}

$enum = new Nette\PhpGenerator\EnumType('Suit');
$enum->addCase('Clubs');
$enum->addCase('Diamonds');
$enum->addCase('Hearts');
$enum->addCase('Spades');

echo $enum;

enum Suit
{
	case Clubs;
	case Diamonds;
	case Hearts;
	case Spades;
}

$enum->addCase('Clubs', '♣');
$enum->addCase('Diamonds', '♦');

$class = new Nette\PhpGenerator\ClassType(null);
$class->addMethod('__construct')
	->addParameter('foo');

echo '$obj = new class ($val) ' . $class . ';';

$obj = new class ($val) {

	public function __construct($foo)
	{
	}
};

$function = new Nette\PhpGenerator\GlobalFunction('foo');
$function->setBody('return $a + $b;');
$function->addParameter('a');
$function->addParameter('b');
echo $function;

// or use the PsrPrinter for output compliant with PSR-2 / PSR-12 / PER
// echo (new Nette\PhpGenerator\PsrPrinter)->printFunction($function);

function foo($a, $b)
{
	return $a + $b;
}

$closure = new Nette\PhpGenerator\Closure;
$closure->setBody('return $a + $b;');
$closure->addParameter('a');
$closure->addParameter('b');
$closure->addUse('c')
	->setReference();
echo $closure;

// or use the PsrPrinter for output compliant with PSR-2 / PSR-12 / PER
// echo (new Nette\PhpGenerator\PsrPrinter)->printClosure($closure);

function ($a, $b) use (&$c) {
	return $a + $b;
}

$closure = new Nette\PhpGenerator\Closure;
$closure->setBody('$a + $b');
$closure->addParameter('a');
$closure->addParameter('b');

echo (new Nette\PhpGenerator\Printer)->printArrowFunction($closure);

fn($a, $b) => $a + $b

$method = $class->addMethod('count')
	->addComment('Count it.')
	->setFinal()
	->setProtected()
	->setReturnType('?int');

$method->addParameter('items', []) // $items = []
	->setReference()           // &$items = []
	->setType('array');        // array &$items = []

// function count(&$items = [])

$method = $class->addMethod('count');
$method->setVariadic(true);
$method->addParameter('items');

function count(...$items)
{
}

$function = new Nette\PhpGenerator\GlobalFunction('foo');
$function->addBody('$a = rand(10, 20);');
$function->addBody('return $a;');
echo $function;

function foo()
{
	$a = rand(10, 20);
	return $a;
}

$str = 'any string';
$num = 3;
$function = new Nette\PhpGenerator\GlobalFunction('foo');
$function->addBody('return substr(?, ?);', [$str, $num]);
echo $function;

function foo()
{
	return substr('any string', 3);
}

$items = [1, 2, 3];
$function = new Nette\PhpGenerator\GlobalFunction('foo');
$function->setBody('myfunc(...?);', [$items]);
echo $function;

function foo()
{
	myfunc(1, 2, 3);
}

$items = ['foo' => 1, 'bar' => true];
$function->setBody('myfunc(...?:);', [$items]);

// myfunc(foo: 1, bar: true);

$num = 3;
$function = new Nette\PhpGenerator\GlobalFunction('foo');
$function->addParameter('a');
$function->addBody('return $a \? 10 : ?;', [$num]);
echo $function;

function foo($a)
{
	return $a ? 10 : 3;
}

$class = new Nette\PhpGenerator\ClassType('Demo');
// ...

$printer = new Nette\PhpGenerator\Printer;
echo $printer->printClass($class); // same as: echo $class

$printer = new Nette\PhpGenerator\PsrPrinter;
echo $printer->printClass($class);

class MyPrinter extends Nette\PhpGenerator\Printer
{
	// length of the line after which the line will break
	public int $wrapLength = 120;
	// indentation character, can be replaced with a sequence of spaces
	public string $indentation = "\t";
	// number of blank lines between properties
	public int $linesBetweenProperties = 0;
	// number of blank lines between methods
	public int $linesBetweenMethods = 2;
	// number of blank lines between 'use statements' groups for classes, functions, and constants
	public int $linesBetweenUseTypes = 0;
	// position of the opening curly brace for functions and methods
	public bool $bracesOnNextLine = true;
	// place one parameter on one line, even if it has an attribute or is supported
	public bool $singleParameterOnOneLine = false;
	// omits namespaces that do not contain any class or function
	public bool $omitEmptyNamespaces = true;
	// separator between the right parenthesis and return type of functions and methods
	public string $returnTypeColon = ': ';
}

use Nette\PhpGenerator\Type;

$member->setType('array'); // or Type::Array;
$member->setType('?array'); // or Type::nullable(Type::Array);
$member->setType('array|string'); // or Type::union(Type::Array, Type::String)
$member->setType('Foo&Bar'); // or Type::intersection(Foo::class, Bar::class)
$member->setType(null); // removes the type

use Nette\PhpGenerator\Literal;

$class = new Nette\PhpGenerator\ClassType('Demo');

$class->addProperty('foo', new Literal('Iterator::SELF_FIRST'));

$class->addMethod('bar')
	->addParameter('id', new Literal('1 + 2'));

echo $class;

class Demo
{
	public $foo = Iterator::SELF_FIRST;

	public function bar($id = 1 + 2)
	{
	}
}

new Literal('substr(?, ?)', [$a, $b]);
// generates for example: substr('hello', 5);

Literal::new(Demo::class, [$a, 'foo' => $b]);
// generates for example: new Demo(10, foo: 20)

$class = new Nette\PhpGenerator\ClassType('Demo');
$class->addAttribute('Table', [
	'name' => 'user',
	'constraints' => [
		Literal::new('UniqueConstraint', ['name' => 'ean', 'columns' => ['ean']]),
	],
]);

$class->addProperty('list')
	->addAttribute('Deprecated');

$method = $class->addMethod('count')
	->addAttribute('Foo\Cached', ['mode' => true]);

$method->addParameter('items')
	->addAttribute('Bar');

echo $class;

#[Table(name: 'user', constraints: [new UniqueConstraint(name: 'ean', columns: ['ean'])])]
class Demo
{
	#[Deprecated]
	public $list;


	#[Foo\Cached(mode: true)]
	public function count(
		#[Bar]
		$items,
	) {
	}
}

$namespace = new Nette\PhpGenerator\PhpNamespace('Foo');

// create new classes in the namespace
$class = $namespace->addClass('Task');
$interface = $namespace->addInterface('Countable');
$trait = $namespace->addTrait('NameAware');

// or insert an existing class into the namespace
$class = new Nette\PhpGenerator\ClassType('Task');
$namespace->add($class);

// use Http\Request;
$namespace->addUse(Http\Request::class);
// use Http\Request as HttpReq;
$namespace->addUse(Http\Request::class, 'HttpReq');
// use function iter\range;
$namespace->addUseFunction('iter\range');

echo $namespace->simplifyName('Foo\Bar'); // 'Bar', because 'Foo' is the current namespace
echo $namespace->simplifyName('iter\range', $namespace::NameFunction); // 'range', due to the defined use-statement

echo $namespace->resolveName('Bar'); // 'Foo\Bar'
echo $namespace->resolveName('range', $namespace::NameFunction); // 'iter\range'

$namespace = new Nette\PhpGenerator\PhpNamespace('Foo');
$namespace->addUse('Bar\AliasedClass');

$class = $namespace->addClass('Demo');
$class->addImplement('Foo\A') // will be simplified to A
	->addTrait('Bar\AliasedClass'); // will be simplified to AliasedClass

$method = $class->addMethod('method');
$method->addComment('@return ' . $namespace->simplifyType('Foo\D')); // we manually simplify in comments
$method->addParameter('arg')
	->setType('Bar\OtherClass'); // will be translated to \Bar\OtherClass

echo $namespace;

// or use the PsrPrinter for output in accordance with PSR-2 / PSR-12 / PER
// echo (new Nette\PhpGenerator\PsrPrinter)->printNamespace($namespace);

namespace Foo;

use Bar\AliasedClass;

class Demo implements A
{
	use AliasedClass;

	/**
	 * @return D
	 */
	public function method(\Bar\OtherClass $arg)
	{
	}
}

$printer = new Nette\PhpGenerator\Printer; // or PsrPrinter
$printer->setTypeResolving(false);
echo $printer->printNamespace($namespace);

$file = new Nette\PhpGenerator\PhpFile;
$file->addComment('This file is auto-generated.');
$file->setStrictTypes(); // adds declare(strict_types=1)

$class = $file->addClass('Foo\A');
$function = $file->addFunction('Foo\foo');

// or
// $namespace = $file->addNamespace('Foo');
// $class = $namespace->addClass('A');
// $function = $namespace->addFunction('foo');

echo $file;

// or use the PsrPrinter for output in accordance with PSR-2 / PSR-12 / PER
// echo (new Nette\PhpGenerator\PsrPrinter)->printFile($file);

/**
 * This file is auto-generated.
 */

declare(strict_types=1);

namespace Foo;

class A
{
}

function foo()
{
}

// creates a class identical to the PDO class
$class = Nette\PhpGenerator\ClassType::from(PDO::class);

// creates a function identical to the trim() function
$function = Nette\PhpGenerator\GlobalFunction::from('trim');

// creates a closure based on the provided one
$closure = Nette\PhpGenerator\Closure::from(
	function (stdClass $a, $b = null) {},
);

$class = Nette\PhpGenerator\ClassType::from(Foo::class, withBodies: true);

$function = Nette\PhpGenerator\GlobalFunction::from('foo', withBody: true);

$class = Nette\PhpGenerator\ClassType::fromCode(<<<XX
	

	class Demo
	{
		public $foo;
	}
	XX);

$file = Nette\PhpGenerator\PhpFile::fromCode(file_get_contents('classes.php'));

$class = new Nette\PhpGenerator\ClassType('Demo');
$manipulator = new Nette\PhpGenerator\ClassManipulator($class);

$method = $manipulator->inheritMethod('bar');
$method->setBody('...');

$property = $manipulator->inheritProperty('foo');
$property->setValue('new value');

$manipulator->implementInterface(SomeInterface::class);
// Now your class implements SomeInterface and 

$dumper = new Nette\PhpGenerator\Dumper;

$var = ['a', 'b', 123];

echo $dumper->dump($var); // outputs ['a', 'b', 123]

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