只接受GMail电子邮件的形式 - Accept Only GMail Emails In Forms

Accept Only GMail Emails In Forms

本文关键字：电子邮件 GMail | 更新日期: 2023-09-27

我在这里有表单，我想只接受GMail电子邮件地址。

这是表格的一部分。

function is_email($email){
   $x = ''d'w!'#'$%&''*+'-/=?'^_`{|}~';    //just for clarity
   return count($email = explode('@', $email, 3)) == 2
       && strlen($email[0]) < 65
       && strlen($email[1]) < 256
       && preg_match("#^[$x]+('.?([$x]+'.)*[$x]+)?$#", $email[0])
       && preg_match('#^(([a-z0-9]+-*)?[a-z0-9]+'.)+[a-z]{2,6}.?$#', $email[1]);
}

    elseif (!is_email($Email)) {
        $resultado = "Please, use a valid email address. (Required for account activation)<br><br> <a href=javascript:history.go(-1)>Go back!</a>";
    }

我已经尝试了" explosion ('@gmail.com'， $email, 3)) == 2"，但是得到的却是错误

你只需要检查字符串是否以"@gmail.com"结尾:

/**
 * Check if an email is a Gmail address
 * @param string $email The email address to check
 * @return boolean
 */
function isGmail($email) {
    $email = trim($email); // in case there's any whitespace
    return mb_substr($email, -10) === '@gmail.com';
}

我这里用的是mb_substr，你也可以用substr

检查条件:

preg_match("~@gmail'.com$~",$email)

function validgmail($email) {
// do other checkings
if (substr($email, 0, -10) == "@gmail.com")
{
// it's valid email
} else {
  //invalid
}

}

试试这个方法是否有效

$email = 'mrshahbaznns@gmail.com';
        if(preg_match("~@gmail'.com$~",$email)){
        echo 'good';
    }
    else{
        echo 'bad';
    }