寻找一个PHP只有电子邮件地址混淆功能(Looking for a php only email a

2019-07-31 22:02发布

是否有一个PHP只有电子邮件地址混淆功能? 大部分在网络上找到的那些都是JS和PHP的混合。

Answer 1:

我的最爱:

标记+ PHP

<span class="rev"><?php echo strrev($email); ?> </span>

CSS

.rev{
    direction: rtl;
    unicode-bidi: bidi-override;
}

小提琴



Answer 2:

这里有一对夫妇的功能我用。

第一个使用HTML字符代码混淆电子邮件地址:

function getObfuscatedEmailAddress($email)
{
    $alwaysEncode = array('.', ':', '@');

    $result = '';

    // Encode string using oct and hex character codes
    for ($i = 0; $i < strlen($email); $i++) {
        // Encode 25% of characters including several that always should be encoded
        if (in_array($email[$i], $alwaysEncode) || mt_rand(1, 100) < 25) {
            if (mt_rand(0, 1)) {
                $result .= '&#' . ord($email[$i]) . ';';
            } else {
                $result .= '&#x' . dechex(ord($email[$i])) . ';';
            }
        } else {
            $result .= $email[$i];
        }
    }

    return $result;
}

例:

echo getObfuscatedEmailAddress('firstname.last-name@example.com');
-->
firstn&#x61;m&#x65;&#x2e;la&#115;t-name&#x40;examp&#108;e&#46;&#x63;om

第二个将返回链接,电子邮件地址是HTML和URL编码:

function getObfuscatedEmailLink($email, $params = array())
{
    if (!is_array($params)) {
        $params = array();
    }

    // Tell search engines to ignore obfuscated uri
    if (!isset($params['rel'])) {
        $params['rel'] = 'nofollow';
    }

    $neverEncode = array('.', '@', '+'); // Don't encode those as not fully supported by IE & Chrome

    $urlEncodedEmail = '';
    for ($i = 0; $i < strlen($email); $i++) {
        // Encode 25% of characters
        if (!in_array($email[$i], $neverEncode) && mt_rand(1, 100) < 25) {
            $charCode = ord($email[$i]);
            $urlEncodedEmail .= '%';
            $urlEncodedEmail .= dechex(($charCode >> 4) & 0xF);
            $urlEncodedEmail .= dechex($charCode & 0xF);
        } else {
            $urlEncodedEmail .= $email[$i];
        }
    }

    $obfuscatedEmail = getObfuscatedEmailAddress($email);
    $obfuscatedEmailUrl = getObfuscatedEmailAddress('mailto:' . $urlEncodedEmail);

    $link = '<a href="' . $obfuscatedEmailUrl . '"';
    foreach ($params as $param => $value) {
        $link .= ' ' . $param . '="' . htmlspecialchars($value). '"';
    }
    $link .= '>' . $obfuscatedEmail . '</a>';

    return $link;
}

例:

echo getObfuscatedEmailLink('firstname.last-name@example.com');
-->
<a href="mailt&#111;&#58;%66i&#37;72stna%&#54;d&#x65;&#46;&#37;6c&#x25;6&#x31;st&#x2d;name&#64;&#101;&#x78;&#x61;mple&#46;co&#109;" rel="nofollow">f&#x69;&#114;s&#x74;na&#109;e&#x2e;&#108;a&#x73;t-name&#64;e&#x78;ample&#46;co&#109;</a>


Answer 3:

这里有一个用PHP 7型提示。

只是把它叫做$this->obfuscateEmail($email);

/**
 * @param string $email
 * @return string
 */
private function obfuscateEmail(string $email) : string
{
    $em   = explode("@", $email);
    $name = implode(array_slice($em, 0, count($em) - 1), '@');
    $len  = floor(strlen($name) / 2);

    return substr($name, 0, $len) . str_repeat('*', $len) . "@" . end($em);
}


Answer 4:

在这里,在情况下的另一种方式存在主机前一个字符:

/**
* @param string $email
* @return string
*/

private function obfuscateEmail($email)
{
    $em   = explode("@", $email);

    $name = implode(array_slice($em, 0, count($em)-1), '@');

    if(strlen($name)==1){
        return   '*'.'@'.end($em);
    }

    $len  = floor(strlen($name)/2);

    return substr($name,0, $len) . str_repeat('*', $len) . "@" . end($em);
}


Answer 5:

这里是一个颇为紧张和不导致错误的另一种方式https://validator.w3.org

function obfuscate($email){
$encoded_email = '';
for ($a = 0,$b = strlen($email);$a < $b;$a++)
{
    $encoded_email .= '&#'.(mt_rand(0,1) == 0  ? 'x'.dechex(ord($email[$a])) : ord($email[$a])) . ';';
}
return $encoded_email;}

然后添加到页面使用:

<a href="mailto:<?= obfuscate(CONTACT_EMAIL.'?subject=Hello!') ?>"><?= CONTACT_EMAIL ?></a>


文章来源: Looking for a php only email address obfuscator function