FunctionInterceptorAspect.php

<?php

declare(strict_types=1);
/*
 * Go! AOP framework
 *
 * @copyright Copyright 2014, Lisachenko Alexander <lisachenko.it@gmail.com>
 *
 * This source file is subject to the license that is bundled
 * with this source code in the file LICENSE.
 */

namespace Demo\Aspect;

use Go\Aop\Aspect;
use Go\Aop\Intercept\FunctionInvocation;
use Go\Lang\Attribute\Around;

/**
 * Function interceptor can intercept an access to the system functions
 */
class FunctionInterceptorAspect implements Aspect
{
    /**
     * This advice intercepts an access to the array_*** function in Demo\Example\ namespace
     */
    #[Around('execution(Demo\Example\array_*(*))')]
    public function aroundArrayFunctions(FunctionInvocation $invocation): mixed
    {
        echo 'Calling Around Interceptor for ',
            $invocation,
            ' with arguments: ',
            json_encode($invocation->getArguments()),
            PHP_EOL;

        return $invocation->proceed();
    }

    /**
     * This advice intercepts an access to the file_get_contents() function
     */
    #[Around('execution(Demo\Example\file_get_contents(*))')]
    public function aroundFileGetContents(FunctionInvocation $invocation): string
    {
        echo 'Calling Around Interceptor for ',
            $invocation,
            ' with arguments: ',
            json_encode($invocation->getArguments()),
            PHP_EOL;

        // return $invocation->proceed(); // Do not call original file_get_contents()
        return 'Hello!'; // Override return value for function
    }
}