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New Functions

PHP 5.3 introduced some new functions:

PHP Core:

Date/Time:

GMP:

Hash:

IMAP:

  • imap_gc() - Clears IMAP cache.
  • imap_utf8_to_mutf7() - Encode a UTF-8 string to modified UTF-7.
  • imap_mutf7_to_utf8() - Decode a modified UTF-7 string to UTF-8.

JSON:

MySQL Improved:

OpenSSL:

PCNTL:

PCRE:

  • preg_filter() - Perform a regular expression search and replace, returning only results which matched the pattern.

Semaphore:

The following functions are now natively implemented, making them available on all operating systems which can run PHP:

PHP Manual