私は実際に、次のようにして、私が望んでいたことを正確に行うことができました。
<?php
function getFileExtension($fileName){
$parts=explode(".",$fileName);
return $parts[count($parts)-1];
}
$imap = imap_open($server, $username, $password) or die("imap connection error");
$message_count = imap_num_msg($imap);
for ($m = 1; $m <= $message_count; ++$m){
$header = imap_header($imap, $m);
//print_r($header);
$email[$m]['from'] = $header->from[0]->mailbox.'@'.$header->from[0]->host;
$email[$m]['fromaddress'] = $header->from[0]->personal;
$email[$m]['to'] = $header->to[0]->mailbox;
$email[$m]['subject'] = $header->subject;
$email[$m]['message_id'] = $header->message_id;
$email[$m]['date'] = $header->udate;
$from = $email[$m]['fromaddress'];
$from_email = $email[$m]['from'];
$to = $email[$m]['to'];
$subject = $email[$m]['subject'];
echo $from_email . '</br>';
echo $to . '</br>';
echo $subject . '</br>';
$structure = imap_fetchstructure($imap, $m);
$attachments = array();
if(isset($structure->parts) && count($structure->parts)) {
for($i = 0; $i < count($structure->parts); $i++) {
$attachments[$i] = array(
'is_attachment' => false,
'filename' => '',
'name' => '',
'attachment' => ''
);
if($structure->parts[$i]->ifdparameters) {
foreach($structure->parts[$i]->dparameters as $object) {
if(strtolower($object->attribute) == 'filename') {
$attachments[$i]['is_attachment'] = true;
$attachments[$i]['filename'] = $object->value;
}
}
}
if($structure->parts[$i]->ifparameters) {
foreach($structure->parts[$i]->parameters as $object) {
if(strtolower($object->attribute) == 'name') {
$attachments[$i]['is_attachment'] = true;
$attachments[$i]['name'] = $object->value;
}
}
}
if($attachments[$i]['is_attachment']) {
$attachments[$i]['attachment'] = imap_fetchbody($imap, $m, $i+1);
if($structure->parts[$i]->encoding == 3) { // 3 = BASE64
$attachments[$i]['attachment'] = base64_decode($attachments[$i]['attachment']);
}
elseif($structure->parts[$i]->encoding == 4) { // 4 = QUOTED-PRINTABLE
$attachments[$i]['attachment'] = quoted_printable_decode($attachments[$i]['attachment']);
}
}
}
}
foreach ($attachments as $key => $attachment) {
$name = $attachment['name'];
$contents = $attachment['attachment'];
file_put_contents($name, $contents);
}
//imap_setflag_full($imap, $i, "\\Seen");
//imap_mail_move($imap, $i, 'Trash');
}
imap_close($imap);
?>