Eldia is a lightweight PHP package that provides developers with a set of extra helpers to simplify common programming tasks. The library is designed to be easy to use, with an elegant and intuitive syntax that makes it easy to add powerful functionality to your PHP applications.
The Eldia package includes a variety of helpers that can be used for tasks like working with arrays, manipulating strings, generating random data, dealing with exceptions and more. These helpers are designed to be easy to integrate into your code, and they can help you to write cleaner, more efficient PHP code.
composer require joodek/eldia
have you used Javascript promises, if so then you probably like them , I like them , now you can use them in php like this :
use Eldia\Promise\Promise;
Promise::make(function ($success, $reject) {
if (0) {
$success('hello world');
} else {
$reject('error');
}
})
->then(fn ($message) => print($message), fn ($reason) => print($reason))
->catch(fn ($exception) => print($exception->getMessage()));
you can use how many then you like , everytime you use it , you have access to the latest returned data , see example
Promise::make(function ($success, $reject) {
$var = 5 + 5;
if ($var === 10) $success($var);
else $reject($var);
})
->then(fn ($data) => $data + 5)
->then(fn ($data) => print $data) // 15
that's available in both , success and reject callbacks, and you can even avoid using the reject at all :
Promise::make(function ($success) {
if (0) {
$success('hello world');
} else{
// do somthing
}
})
->then(fn ($message) => print($message))
during the promise callbacks , you're safe from all types of errors , excep the syntax errors , which means
that whatever happend in the callbacks, no error will occur , it will just stop executing the callbacks,
but , for some reason you want to execute some code when an error occurs , you can use catch ,
Promise::make(function ($success) {
if (0) {
$success('hello world');
} else{
throw new Exception('error');
}
})
->catch(fn ($exception) => print($exception->getMessage())) // prints "error"
you can even catch specific error by just typing hint the exception type , typed exception will only be exceuted if it matches the type :
Promise::make(function ($success) {
$str = "baz";
if ($str === "foo") {
$success('hello world');
} else {
throw new ValidationException('error');
}
})
->catch(fn (AuthException $exception) => print($exception->getMessage())) // won't works
->catch(fn (ValidationException $exception) => print($exception->getMessage())); // prints "error"