PHP code example of corveda / php-sandbox

1. Go to this page and download the library: Download corveda/php-sandbox library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

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

corveda / php-sandbox example snippets


function test($string){
    return 'Hello ' . $string;
}

$sandbox = new PHPSandbox\PHPSandbox;
$sandbox->whitelistFunc('test');
$result = $sandbox->execute(function(){
   return test('world');
});

var_dump($result);  //Hello world


function custom_func(){
    echo 'I am valid!';
}

$sandbox = new PHPSandbox\PHPSandbox;
//this will mark any function valid that begins with "custom_"
$sandbox->setFuncValidator(function($function_name, PHPSandbox\PHPSandbox $sandbox){
    return (substr($function_name, 0, 7) == 'custom_');  //return true if function is valid, false otherwise
});
$sandbox->execute(function(){
    custom_func();
});
//echoes "I am valid!"


$sandbox = new PHPSandbox\PHPSandbox;
//this will intercept parser validation errors and quietly exit, otherwise it will throw the validation error
$sandbox->setValidationErrorHandler(function(PHPSandbox\Error $error, PHPSandbox\PHPSandbox $sandbox){
    if($error->getCode() == PHPSandbox\Error::PARSER_ERROR){ //PARSER_ERROR == 1
        exit;
    }
    throw $error;
});
$sandbox->execute(' i am malformed PHP code; 

$sandbox = new PHPSandbox\PHPSandbox;
//this will disable function validation
$sandbox->setOption('validate_functions', false); // or $sandbox->validate_functions = false;
$sandbox->execute(' echo system("ping google.com"); 
composer.json
{
    "p-sandbox": "3.*"
    }
}