PHP - Built-In Functions
PHP - Function References
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PHP is very rich in terms of Built-in functions. Here is the list of various important function categories. There are various other function categories which are not covered here.
Select a category to see a list of all the functions related to that category.
- PHP Array Functions
- PHP bzip2 Functions
- PHP Calender Functions
- PHP Class/Object Functions
- PHP Character Functions
- PHP Client URL Functions
- PHP Cond Functions
- PHP Collectable Functions
- PHP Collection Functions
- PHP Date & Time Functions
- PHP Deque Functions
- PHP Directory Functions
- PHP Direct I/O Functions
- PHP Error Handling Functions
- PHP FileInfo Functions
- PHP File System Functions
- PHP Forms Data Format Functions
- PHP Function Handling Functions
- PHP Geoip Functions
- PHP GMP Functions
- PHP Hash Functions
- PHP Hashble Functions
- PHP IMAP Functions
- PHP Inotify Functions
- PHP JavaScript Object Notation Functions
- PHP Judy Arrays Functions
- PHP LibXML Functions
- PHP Lua Functions
- PHP Map Functions
- PHP Memcache Functions
- PHP Mhash Functions
- PHP Mutex Functions
- PHP MySQL Functions
- PHP Network Functions
- PHP ODBC Functions
- PHP Password Functions
- PHP Pair Functions
- PHP Phdfs Functions
- PHP Pool Functions
- PHP PriorityQueue Functions
- PHP Proctitle Functions
- PHP Queue Functions
- PHP RRD Functions
- PHP Sequence Functions
- PHP Session Functions
- PHP Set Functions
- PHP SimpleXML Functions
- PHP Statistics Module
- PHP Stack Functions
- PHP String Functions
- PHP Thread Functions
- PHP Threaded Functions
- PHP Tokenizer Functions
- PHP URL’s Functions
- PHP Vector Functions
- PHP Variable Handling Functions
- PHP Xattr Functions
- PHP Xdiff Functions
- PHP XML Functions
- PHP XML Parsing Functions
- PHP XML Reader Functions
- PHP XML Writer Functions
- PHP XSLT Processor Functions
- PHP OpenSSL Functions
- PHP Worker Functions
- PHP YAML Data Serialization Functions