html - PHP script sends multiple emails instead of a single one -

i have test web page (see below) has single instruction displays happy_face.gif image. image source address in test page refers php script file (see below) returns image , sends email single recipient address. code listed below works fine.

however, when use mozilla thunderbird or outlook 2010 email client , insert picture (using email client’s image link feature) , provide "http://www.example.com/displays_image_&_sends_email.php" link address, , send email single email address (no cc or bcc) following happens: image shown in case of thunderbird php script sends 4 emails instead of one, , when using outlook 2010 sends 12 emails instead of single one.

please help.

thanks, menachem blasberg

http://www.example.com/snipett_displays_image_&_sends_email.html

<img src="http://www.example.com/displays_image_&_sends_email.php" > 

http://www.example.com/displays_image_&_sends_email.php

<?php    // show image in browser client.    $logo = "http://www.example.com/happy_face.gif"; // set image full path    readfile($logo);    // send test email.      ini_set( 'display_errors', 1 );     error_reporting( e_all );     $from = "mblasberg@inoxel.com";     $to = "menb@pacbell.net";     $subject = "php mail test script";     $message = "this test check php mail functionality";     $headers = "from:" . $from;     mail($to,$subject,$message, $headers);  ?> 

the change need make send multiple emails is,put recipient emails in form of text seperated comma's, , put text in address send email email ids.i.e

$recipients = array(  "youremailaddress@yourdomain.com",  // more emails ); $email_to = implode(',', $recipients); // email address