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@ 2017-10-04T12:18:05Z

<?php
/**
 * Created by PhpStorm.
 * User: Tobias Cervin
 * Date: 2017-10-02
 */

session_start();
require_once 'Key.php';

if(isset($_POST['email']) && isset($_POST['key'])){

    $email = $_POST['email'];
    $filename = 'subscriptions.txt';

    if (!empty($email)){
        if(Key::isValid($_POST['key'])){

            //If key is valid it takes email from the form and writes it to the existing or created file 'subscriptions.txt'
            file_put_contents($filename, $email + '\n', FILE_APPEND | LOCK_EX);

            echo 'You have been added as a subscripteee!';
        }
        else{
            echo 'You little fraud, get out of here!!!';
        }
    }
    else{
        echo 'Wrong email input...';
    }
}

?>

<!DOCTYPE html>
<html>
    <head>
        <title>The Awesome Mail Spamming Subscription!</title>
    </head>

    <body>
        <form action="" method="post">
            <div class="subscribe">
                <strong>Please Subscribe!</strong>
                <div class="field">
                    eMail: <input type="email" name="email">
                </div>
                <input type="submit" value="subscribed">
                <input type="hidden" name="key" value="<?php echo Key::generate(); ?>">
            </div>
        </form>
    </body>
</html>

Output for git.master, git.master_jit, rfc.property-hooks: Warning: require_once(): open_basedir restriction in effect. File(Key.php) is not within the allowed path(s): (/tmp:/in:/etc) in /in/0j8MI on line 9 Warning: require_once(Key.php): Failed to open stream: Operation not permitted in /in/0j8MI on line 9 Fatal error: Uncaught Error: Failed opening required 'Key.php' (include_path='.:') in /in/0j8MI:9 Stack trace: #0 {main} thrown in /in/0j8MI on line 9
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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