预定义常量

下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。

NIL (int)

Deprecated as of PHP 8.1.0.

OP_DEBUG (int)

OP_READONLY (int)

Open mailbox read-only

OP_ANONYMOUS (int)

Don't use or update a .newsrc for news (NNTP only)

OP_SHORTCACHE (int)

OP_SILENT (int)

OP_PROTOTYPE (int)

OP_HALFOPEN (int)

For IMAP and NNTP names, open a connection but don't open a mailbox.

OP_EXPUNGE (int)

OP_SECURE (int)

CL_EXPUNGE (int)

silently expunge the mailbox before closing when calling imap_close()

FT_UID (int)

The parameter is a UID

FT_PEEK (int)

Do not set the \Seen flag if not already set

FT_NOT (int)

FT_INTERNAL (int)

The return string is in internal format, will not canonicalize to CRLF.

FT_PREFETCHTEXT (int)

ST_UID (int)

The sequence argument contains UIDs instead of sequence numbers

ST_SILENT (int)

ST_SET (int)

CP_UID (int)

the sequence numbers contain UIDS

CP_MOVE (int)

Delete the messages from the current mailbox after copying with imap_mail_copy()

SE_UID (int)

Return UIDs instead of sequence numbers

SE_FREE (int)

SE_NOPREFETCH (int)

Don't prefetch searched messages

SO_FREE (int)

SO_NOSERVER (int)

SA_MESSAGES (int)

SA_RECENT (int)

SA_UNSEEN (int)

SA_UIDNEXT (int)

SA_UIDVALIDITY (int)

SA_ALL (int)

LATT_NOINFERIORS (int)

This mailbox has no "children" (there are no mailboxes below this one).

LATT_NOSELECT (int)

This is only a container, not a mailbox - you cannot open it.

LATT_MARKED (int)

This mailbox is marked. Only used by UW-IMAPD.

LATT_UNMARKED (int)

This mailbox is not marked. Only used by UW-IMAPD.

LATT_REFERRAL (int)

This container has a referral to a remote mailbox.

LATT_HASCHILDREN (int)

This mailbox has selectable inferiors.

LATT_HASNOCHILDREN (int)

This mailbox has no selectable inferiors.

SORTDATE (int)

Sort criteria for imap_sort(): message Date

SORTARRIVAL (int)

Sort criteria for imap_sort(): arrival date

SORTFROM (int)

Sort criteria for imap_sort(): mailbox in first From address

SORTSUBJECT (int)

Sort criteria for imap_sort(): message subject

SORTTO (int)

Sort criteria for imap_sort(): mailbox in first To address

SORTCC (int)

Sort criteria for imap_sort(): mailbox in first cc address

SORTSIZE (int)

Sort criteria for imap_sort(): size of message in octets

TYPETEXT (int)

Primary body type: unformatted text

TYPEMULTIPART (int)

Primary body type: multiple part

TYPEMESSAGE (int)

Primary body type: encapsulated message

TYPEAPPLICATION (int)

Primary body type: application data

TYPEAUDIO (int)

Primary body type: audio

TYPEIMAGE (int)

Primary body type: static image

TYPEVIDEO (int)

Primary body type: video

TYPEMODEL (int)

Primary body type: model

TYPEOTHER (int)

Primary body type: unknown

ENC7BIT (int)

Body encoding: 7 bit SMTP semantic data

ENC8BIT (int)

Body encoding: 8 bit SMTP semantic data

ENCBINARY (int)

Body encoding: 8 bit binary data

ENCBASE64 (int)

Body encoding: base-64 encoded data

ENCQUOTEDPRINTABLE (int)

Body encoding: human-readable 8-as-7 bit data

ENCOTHER (int)

Body encoding: unknown

IMAP_OPENTIMEOUT (int)

IMAP_READTIMEOUT (int)

IMAP_WRITETIMEOUT (int)

IMAP_CLOSETIMEOUT (int)

IMAP_GC_ELT (int)

Garbage collector, clear message cache elements.

IMAP_GC_ENV (int)

Garbage collector, clear envelopes and bodies.

IMAP_GC_TEXTS (int)

Garbage collector, clear texts.