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@ 2015-08-05T08:32:01Z

<?php
$message = 'test';
$key = openssl_random_pseudo_bytes(16);
$iv = openssl_random_pseudo_bytes(16);

$cipher = mcrypt_encrypt(
    MCRYPT_RIJNDAEL_128,
    $key,
    $message,
    MCRYPT_MODE_CBC,
    $iv
);

$plain = openssl_decrypt(
    $cipher,
    'aes-128-cbc',
    $key,
    OPENSSL_RAW_DATA | OPENSSL_NO_PADDING,
    $iv
);

//try to detect null padding
if (mb_strlen($iv, '8bit') % mb_strlen($plain, '8bit') == 0) {
        preg_match_all('#([\0]+)$#', $plain, $matches);
        if (mb_strlen($matches[1][0], '8bit') > 1) {
                $plain = rtrim($plain, "\0");
                trigger_error('Detected and stripped null padding. Please double-check results!');
        }
}



var_dump(
    $message,
    bin2hex($cipher),
    $plain,
    mb_strlen($message, '8bit'),
    mb_strlen($plain, '8bit'),
    $message === $plain
);

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Call to undefined function openssl_random_pseudo_bytes() in /in/kYAXn:3 Stack trace: #0 {main} thrown in /in/kYAXn on line 3
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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