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CSRF ?? ?? ??: PHP ??? ?? ??
? ??? ?? PHP ???? PHP ???? CSRF ?? ??? ???? ???? ??? ??????

PHP ???? CSRF ?? ??? ???? ???? ??? ??????

Dec 17, 2024 pm 08:00 PM

How to Securely Implement CSRF Token Protection in PHP Forms?

CSRF ?? ?? ??: PHP ??? ?? ??

??

? ???? ??? ?? ??? ????? ?? ??? ?????. CSRF(?? ??? ?? ??)? ??? ???? ???. ? ????? PHP? ???? CSRF ??? ????? ???? ??? ??? ?????.

?? ??

? ???? CSRF ?? ??? ????? ?? ?? ???? ????. HTML ??? ?????. ?? "???" ? AJAX ???? ? ??? ?????.

?? ??

??:

PHP:

if (!isset($_SESSION)) {
    session_start();
    $_SESSION['formStarted'] = true;
}

if (!isset($_SESSION['token'])) {
    $token = md5(uniqid(rand(), TRUE));
    $_SESSION['token'] = $token;
}

HTML:

<input type="hidden" name="token" value="<?php echo $token; ?>" />

?? ??

????? ?? ?? ?? ??? ??? ?? ??? ?????.

  • rand()? ??? ? ?? ???? ??? ????.
  • uniqid()? ??? ?? ????? ?????.
  • md5 ()? ????? ???? ?? ??? ?????.

??? ?? ??? ??

??? ????? ?? PHP ??? ?????.

PHP 7:

session_start();
if (empty($_SESSION['token'])) {
    $_SESSION['token'] = bin2hex(random_bytes(32));
}
$token = $_SESSION['token'];

PHP 5.3(?? ext-mcrypt ??):

session_start();
if (empty($_SESSION['token'])) {
    if (function_exists('mcrypt_create_iv')) {
        $_SESSION['token'] = bin2hex(mcrypt_create_iv(32, MCRYPT_DEV_URANDOM));
    } else {
        $_SESSION['token'] = bin2hex(openssl_random_pseudo_bytes(32));
    }
}
$token = $_SESSION['token'];

?? ??

???? CSRF ??? ???? ???? ???? ??? ?????. ??:

if (!empty($_POST['token'])) {
    if (hash_equals($_SESSION['token'], $_POST['token'])) {
         // Proceed to process the form data
    } else {
         // Log this as a warning and monitor such attempts
    }
}

?? ?? ??

  • ?? ??? ?? ? ??? ?? CSRF ??? ??? ?? ?????.
  • ?? ??? ?? , Twig ??? ??? ???? ?? ??? ????? ?? ???.
  • ??? ??? CSRF ??? ?? Paragon Initiative Enterprises? Anti-CSRF ?????? ?? ?? ?????? ??? ?????.

? ??? PHP ???? CSRF ?? ??? ???? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

? ????? ??
? ?? ??? ????? ???? ??? ??????, ???? ?????? ????. ? ???? ?? ???? ?? ??? ?? ????. ???? ??? ???? ???? ??? ?? admin@php.cn?? ?????.

? AI ??

Undresser.AI Undress

Undresser.AI Undress

???? ?? ??? ??? ?? AI ?? ?

AI Clothes Remover

AI Clothes Remover

???? ?? ???? ??? AI ?????.

Video Face Swap

Video Face Swap

??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!

???

??? ??

???++7.3.1

???++7.3.1

???? ?? ?? ?? ???

SublimeText3 ??? ??

SublimeText3 ??? ??

??? ??, ???? ?? ????.

???? 13.0.1 ???

???? 13.0.1 ???

??? PHP ?? ?? ??

???? CS6

???? CS6

??? ? ?? ??

SublimeText3 Mac ??

SublimeText3 Mac ??

? ??? ?? ?? ?????(SublimeText3)

???

??? ??

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