composer require ledc/macroable
<?php
use Ledc\Macroable\Macro;
use Ledc\Macroable\Macroable;
require_once __DIR__ . '/vendor/autoload.php';
class Tests
{
//use Macroable;
use Macro;
}
class Request
{
//use Macroable;
use Macro;
}
$ts = new Tests();
$ts->macro('hello', function () {
echo 'hello Tests' . PHP_EOL;
});
$ts->hello();
$req = new Request();
$req->macro('hello', function () {
echo 'hello Request' . PHP_EOL;
});
$req->hello();
You can add a new method to a class using macro
:
$macroableClass = new class() {
use Ledc\Macroable\Macroable;
};
$macroableClass::macro('concatenate', function(... $strings) {
return implode('-', $strings);
});
$macroableClass->concatenate('one', 'two', 'three'); // returns 'one-two-three'
Callables passed to the macro
function will be bound to the class
$macroableClass = new class() {
protected $name = 'myName';
use Ledc\Macroable\Macroable;
};
$macroableClass::macro('getName', function() {
return $this->name;
};
$macroableClass->getName(); // returns 'myName'
You can also add multiple methods in one go by using a mixin class. A mixin class contains methods that return callables. Each method from the mixin will be registered on the macroable class.
$mixin = new class() {
public function mixinMethod()
{
return function() {
return 'mixinMethod';
};
}
public function anotherMixinMethod()
{
return function() {
return 'anotherMixinMethod';
};
}
};
$macroableClass->mixin($mixin);
$macroableClass->mixinMethod() // returns 'mixinMethod';
$macroableClass->anotherMixinMethod() // returns 'anotherMixinMethod';
- 宏指令方法不存在状态:用
Ledc\Macroable\Macroable
- 宏指令方法存在状态或依赖上下文时,用:
Ledc\Macroable\Macro
特性trait | 使用场景 |
---|---|
Ledc\Macroable\Macroable |
PHP-FPM,或宏指令方法无状态 |
Ledc\Macroable\Macro |
PHP-CLI,中间件内对请求对象注入方法(请求结束销毁) |