How to validate multiple email addresses using PHP and output valid ones

Question

I want to write a script that takes about 5 email addresses and then check if they are valid and if they are then send a message to each email address. I previously wrote this but got stuck along the way because the code runs when all emails were valid. How do i individualize the emails for checking and making sure even if one of the emails is invalid the code will display the rest of the valid ones.

<form method="post" action="validate_emails.php">
<p>Enter emails and separate them with a comma.</p>
<textarea name="emails" cols="50" rows="10">

</textarea>

<p><input name="send" type="submit" value="submit"></p>
</form>
<?php

if(isset($_POST['send'])) {
    $fes = preg_split('[,\r\n]', $_POST['emails']);


    foreach ( $fes as $key => $email ) 
    {     

      if(filter_var($email, FILTER_VALIDATE_EMAIL)){
            echo $fes[key];

                    //mailing to code not entered.

      }


    } 

}

?>

Gaurav · Accepted Answer · 2011-02-27 06:06:53Z

2

foreach ( $fes as $key => $email ) 
    {     

      if(filter_var($email, FILTER_VALIDATE_EMAIL) == false){
            // email is invalid, do what you want
           continue;
      }

     // now email is valid 
     // code for sending email
    }

answered Feb 27, 2011 at 6:06

Gaurav

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1 Comment

Lèse majesté Over a year ago

Would be a cool way to do it, but I get some weird behaviors. For example, an email address without a TLD, like foo@bar, will validate, but if the hostname ends in a digit, like foo@bar2, it won't validate. But IP addresses do validate for the hostname part.

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