How to pass parameters to PHP closure function and use external variables, php variables_PHP tutorial

How to pass parameters and use external variables in PHP closure function, php variables

This article describes the method of passing parameters and using external variables in PHP closure function. Share it with everyone for your reference, the details are as follows:

Write two methods in the Laravel controller, one is to create a closure function internally, and the other is to execute the passed closure function, test the writing method of the closure, use external variables, and pass parameters of the closure function . As follows:

//测试闭包传参及use使用外部变量
public function testClosure($t1, $t2)
{
  $closure = function ($param1, $param2) use ($t1, $t2) {
    echo $param1.$param2.$t1.$t2;
  };
  $this->execClosure('test.closure', $closure);
}
//执行闭包函数
protected function execClosure($name, Closure $closure)
{
  echo 'Closure func name:'.$name;
  echo '<br>';
  $closure('p1', 'p2');
}

Add routes in routes.php:
Copy code The code is as follows: Route::get('/test/closure/{t1}/{t2}',['uses'=>'TestController@testClosure'] );

Visit www.example.com/test/closure/hehe1/hehe2

Browser output:

Closure func name:test.closure
p1p2hehe1hehe2

Reprinted from: Xiaotan Blog http://www.tantengvip.com/2016/03/php-closure-use/

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I hope this article will be helpful to everyone in PHP programming.

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