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? ??? ?? PHP ???? PHP?? ?? ??? ?? ?? ??? ???? ??? ??? ? ????

PHP?? ?? ??? ?? ?? ??? ???? ??? ??? ? ????

Dec 23, 2024 am 12:54 AM

How Can I Generate Secure Alphanumeric Strings for Verification Links in PHP?

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

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

PHP 7(??)

PHP 7 ?? ??????? ??? ???? random_bytes() ??? ???? ????. ?????? ??? ?? ?? ???.

$bytes = random_bytes(20);
echo bin2hex($bytes);

PHP 5 (??)

PHP 5? ?? ?? ?? ??? ?? openssl_random_pseudo_bytes()? ???? ?? ????.

echo bin2hex(openssl_random_pseudo_bytes(20));

?? ?? ??

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

function crypto_rand_secure($min, $max) {
    // Calculate and filter random bits
    $bytes = (int) (($max - $min) / 8) + 1;
    $bits = (int) log($max - $min, 2) + 1;
    $filter = (int) (1 << $bits) - 1;

    do {
        $rnd = hexdec(bin2hex(openssl_random_pseudo_bytes($bytes)));
        $rnd &= $filter;
    } while ($rnd > $range);

    return $min + $rnd;
}

function getToken($length) {
    // Define character set and calculate maximum length
    $codeAlphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
    $max = strlen($codeAlphabet); // edited

    // Generate token of specified length
    $token = "";
    for ($i = 0; $i < $length; $i++) {
        $token .= $codeAlphabet[crypto_rand_secure(0, $max-1)];
    }

    return $token;
}

? ??? rand() ? mt_rand? ?? ??? ??? ???? ??? ??? ???? ??? ?? ??? ??? ????? ?????.

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

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

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Undresser.AI Undress

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

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

SublimeText3 ??? ??

SublimeText3 ??? ??

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??? PHP ?? ?? ??

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