Multi-dimensional Array help

peppino

Hello,
i have a function that loops through email addresses and checking them to see if they are valid. if the email address is valid i want to add it to the $validEmails array, and if its invalid i want to add it to the $invalidEmails array. BUT, in order to return this data from a function it will need to be a multi-dimensional array!

so, how do i create one multi-dimensional array of valid emails and invalid emails that i can return from my function?

you help is MUCH appreciated!
joe

oh yeah, and how do i output a listing of the invalid emails? i dont really know anything about multi-dimensional arrays?

NogDog

If you want a multi-dim array, you could initialize it as:

$emails = array('valid' => array(), 'invalid' => array());

Then as you validate each email, add it to the appropriate sub-array as:

$emails['valid'][] = $thisEmail;
// or...
$emails['invalid'][] = $thisEmail;

However, if you'd prefer to have 2 separate arrays (though I kind of like the idea of keeping them together), you could pass two array args to your function as references:

function validate_emails($emailList, &$validEmails, &$invalidEmails)
{
  $validEmails = array();
  $invalidEmails = array();
  // do your loop on $emailList and then add to applicalbe array
}
// usage
validate_emails($emailList, $valid, $invalid);
// see invalid emails:
print_r($invalid);

peppino

AWESOME! thank you so much, i will give that a try.

thanks again!
joe