How to implement statistics on email size in PHP_PHP Tutorial

To count how much space a user’s inbox takes up, first calculate the size of each email (title + content + vicinity), and then add the sum;
1. Calculate the size of the vicinity;
2. Calculate the title and content size
3. Calculate the size of a single email by summing it up
Case:

Copy the code The code is as follows:

$attach_size= 0;
if($attachmentid){ //Get the nearby size >        $attach_data= attachdata($attachmentid);                                                                                                                                                                                                                                                                 >                                                                                                      , "wb");
fwrite($_file, $subject.$content);
fclose($_file);
if($_temp= filesize($_filename)){
$email_content_size = $_temp;
}
$del_ret= @unlink($_filename);
$sum_size= $attach_size*1024 + $email_content_size; //Total size of email
?>








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To count how much space a user’s inbox takes up, first calculate the size of each email (title + content + nearby ), then sum; 1. Calculate nearby size; 2. Calculate title and content size 3. Total...