PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

Reading Mail
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Reading a Mail Message
Each message in the previous display_list() function is set up to link to specific
email messages. Each link is of the form
index.php?action=view-message&messageid=6
The messageid is the sequence number used in the headers retrieved earlier. Note that
IMAP messages are numbered from 1, not 0.
If the user clicks one of these links, he will see output like that shown in Figure 29.6.
Figure 29.6
Using the view-message action shows a particular message.
When you enter these parameters into the index.php script, you execute the following
code:
case 'show-headers':
case 'hide-headers':
case 'view-message':
// if we have just picked a message from the list, or were looking at
// a message and chose to hide or view headers, load a message
$fullheaders = ($action == 'show-headers');