How to get Gravatar image from Email - Helper Class and Advanced implementation

Gravatar is one of the most beautiful systems to use images on any of the websites. Gravatar has given us the ability to use and email and get some customized email as we need. Let's learn about that today.

How to get Gravatar image from Email - Helper Class

First, we would make a helper class to get and set the gravatar image. Let's do it quickly.

<?php

/**
* Gravatar Helper Class
*
* Validate Gravatar Image and Set the URL
*/
class GravatarHelper
{

  /**
  * Validate the Email
  *
  * Check if the email has any gravatar image or not
  *
  * @param  string  $email Email of the User
  *
  * @return boolean true, if there is an image. false otherwise
  */
  public static function validate_gravatar($email) {
    $hash = md5($email);
    $uri = 'http://www.gravatar.com/avatar/' . $hash . '?d=404';
    $headers = @get_headers($uri);
    if (!preg_match("|200|", $headers[0])) {
      $has_valid_avatar = FALSE;
    } else {
      $has_valid_avatar = TRUE;
    }
    return $has_valid_avatar;
  }


  /**
  * Get Gravat Image URL
  *
  * Get the Gravatar Image From An Email address
  *
  * @param  string  $email User Email
  * @param  integer $size  size of image
  * @param  string  $d     type of image if not gravatar image
  *
  * @return string        gravatar image URL
  */
  public static function gravatar_image( $email, $size=0, $d="" ) {
    $hash = md5($email);
    $image_url = 'https://www.gravatar.com/avatar/' . $hash. '?s='.$size.'&d='.$d;
    return $image_url;
  }
}

<?php

$email = 'manirujjamanakash@gmail.com';

$isEmailValidated = GravatarHelper::validate_email( $email );

if ( $isEmailValidated ) {
   echo GravatarHelper::gravatar_image($email, 100); // 
}

<?php if(GravatarHelper::validate_gravatar($email)): ?>
   <img src="<?= GravatarHelper::gravatar_image($email, 100) ?>" alt="" />
<?php endif; ?>​

Code Parts

validate_gravatar($email)
Pass an email to this function. If there is an email in gravatar.com for this email this function will return true , otherwise it'll return false

gravatar_image($email, $size="", $d="")
Pass an email, size(optional), d(optional)  to this function. This will return an image URL if there is any image

Reference Article 

About how to use Gravatar Email as Image - https://en.gravatar.com/site/implement/images/php

Good Class-Based Example - https://github.com/emberlabs/gravatarlib