Downloads
Documentation
Get Involved
Help
Getting Started
Introduction
A simple tutorial
Language Reference
Basic syntax
Types
Variables
Constants
Expressions
Operators
Control Structures
Functions
Classes and Objects
Namespaces
Enumerations
Errors
Exceptions
Fibers
Generators
Attributes
References Explained
Predefined Variables
Predefined Exceptions
Predefined Interfaces and Classes
Predefined Attributes
Context options and parameters
Supported Protocols and Wrappers
Security
Introduction
General considerations
Installed as CGI binary
Installed as an Apache module
Session Security
Filesystem Security
Database Security
Error Reporting
User Submitted Data
Hiding PHP
Keeping Current
Features
HTTP authentication with PHP
Cookies
Sessions
Dealing with XForms
Handling file uploads
Using remote files
Connection handling
Persistent Database Connections
Command line usage
Garbage Collection
DTrace Dynamic Tracing
Function Reference
Affecting PHP's Behaviour
Audio Formats Manipulation
Authentication Services
Command Line Specific Extensions
Compression and Archive Extensions
Cryptography Extensions
Database Extensions
Date and Time Related Extensions
File System Related Extensions
Human Language and Character Encoding Support
Image Processing and Generation
Mail Related Extensions
Mathematical Extensions
Non-Text MIME Output
Process Control Extensions
Other Basic Extensions
Other Services
Search Engine Extensions
Server Specific Extensions
Session Extensions
Text Processing
Variable and Type Related Extensions
Web Services
Windows Only Extensions
XML Manipulation
GUI Extensions
Keyboard Shortcuts
?
This help
j
Next menu item
k
Previous menu item
g p
Previous man page
g n
Next man page
G
Scroll to bottom
g g
Scroll to top
g h
Goto homepage
g s
Goto search
(current page)
/
Focus search box
Introduction »
« Cryptography Extensions
PHP Manual
Function Reference
Cryptography Extensions
Change language:
English
German
Spanish
French
Italian
Japanese
Brazilian Portuguese
Russian
Turkish
Chinese (Simplified)
Other
HASH Message Digest Framework
Introduction
Installing/Configuring
Installation
Resource Types
Predefined Constants
HashContext
— The HashContext class
HashContext::__construct
— Private constructor to disallow direct instantiation
HashContext::__serialize
— Serializes the HashContext object
HashContext::__unserialize
— Deserializes the data parameter into a HashContext object
Hash Functions
hash_algos
— Return a list of registered hashing algorithms
hash_copy
— Copy hashing context
hash_equals
— Timing attack safe string comparison
hash_file
— Generate a hash value using the contents of a given file
hash_final
— Finalize an incremental hash and return resulting digest
hash_hkdf
— Generate a HKDF key derivation of a supplied key input
hash_hmac_algos
— Return a list of registered hashing algorithms suitable for hash_hmac
hash_hmac_file
— Generate a keyed hash value using the HMAC method and the contents of a given file
hash_hmac
— Generate a keyed hash value using the HMAC method
hash_init
— Initialize an incremental hashing context
hash_pbkdf2
— Generate a PBKDF2 key derivation of a supplied password
hash_update_file
— Pump data into an active hashing context from a file
hash_update_stream
— Pump data into an active hashing context from an open stream
hash_update
— Pump data into an active hashing context
hash
— Generate a hash value (message digest)
Improve This Page
Learn How To Improve This Page
•
Submit a Pull Request
•
Report a Bug
+
add a note
User Contributed Notes
There are no user contributed notes for this page.