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Function Categories
PHP Function Categories by Purpose
PHP
APC user cache
23
BCMath
10
CSPRNG pseudo-random number generator
2
CURL
33
Exif exchangeable image information
5
Hash
15
JSON
7
MySQLi
110
OPcache
6
PDO
36
PHP Options and Information
54
SPL
15
Stream
46
URLs
10
XML parser
24
Session Session
46
Function processing
13
Variable processing
37
Image processing GD
113
External function interface
16
Multi-byte string
59
Sockets
39
String
101
Character type detection Ctype
11
Character Set Conversion iconv
11
Password hashing algorithm
5
math
50
Array
82
File information Fileinfo
11
File system
83
Date and time
51
Miscellaneous
30
Regular processing PCRE
11
Directory functions
9
Program execution
11
Classes and Objects
18
Network
34
Output buffer control
17
Filter
7
Error handling
12
