PHP packages for WordPress

PHP extensions and libraries WP needs and/or uses

reference

• cURL - 127 uses (requires libcurl)
  • HTTP API (class WP_Http_curl)
  • url_is_accessable_via_ssl()
  • SimplePie (overridden with class WP_SimplePie_File)
  • GoogleSpell (from TinyMCE package, is not used?)
• Date/Time - 367 uses
• DOM - 6 uses (requires libxml)
  • iis7_rewrite_rule_exists()
  • iis7_delete_rewrite_rule()
  • iis7_add_rewrite_rule()
  • saveDomDocument()
• POSIX Rege- x - 23 uses
• Filter - 2 uses
  • class PHPMailer->ValidateAddress() (optional)
• FTP - 72 uses
  • class ftp_base
  • class ftp (pure and sockets versions)
  • class WP_Filesystem_FTPext
  • class WP_Filesystem_ftpsockets
• GD - 56 uses
  • wp-admin\includes\image-edit.php
  • wp-admin\includes\image.php
  • wp-includes\media.php
• Hash - 6 uses
  • wp-includes\pluggable.php multiple uses (optional - fallback in wp-includes\compat.php)
• iconv - 5 uses
  • class SimplePie (optional)
  • wp_check_invalid_utf8() (optional)
  • wp-mail.php (optional)
• JSON - 20 uses
  • optional, fallbacks in wp-includes/compat.php
  • libxml - 4 uses
  • class WP_oEmbed->_parse_xml() (optional)
  • SimplePie
• Multibyte String - 29 uses
  • some fallback in wp-includes/compat.php
• MySQL - 60 uses
  • class wpdb
  • class SimplePie_Cache (overridden with class WP_Feed_Cache)
• OpenSSL - 4 uses
  • class PHPMailer
• PCRE - 743 uses
• SimpleXML - 1 uses
  • class WP_oEmbed (seems optional)
• Sockets - 64 uses
  • class ftp (sockets implementation)
• SPL - 3 uses
• Tokenizer - 3 uses
  • wp_doc_link_parse() (optional)
• XML Parser - 89 uses
• XMLReader - 1 uses
  • SimplePie (seems optional)
• Zlib - 30 uses