Glossary Index

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Showing 1–50 of 167 terms.
C
167 terms
Cache-Aside
A caching pattern where application code loads missing entries from the authoritative data store.
Cacheable
A cacheable response is an HTTP response that can be cached, that is stored to be retrieved and used later, saving a new request to the server.
Cache Invalidation
Cache invalidation removes or versions cached values after the underlying data changes.
Cache Stampede
A burst of duplicate regeneration work caused by concurrent requests for the same missing or expired cache entry.
Callback function
A callback function is a function passed into another function as an argument, which is then invoked inside the outer function to complete some kind of routine or action.
Call stack
A call stack is a mechanism for an interpreter (like the JavaScript interpreter in a web browser) to keep track of its place in a script that calls multiple functions — what function is currently being run and what functions are called from within that…
call_user_func()
call_user_func() — Call the callback given by the first parameter.
Camel case
Camel case is a way of writing phrases without spaces, where the first letter of each word is capitalized, except for the first letter of the entire compound word, which may be either upper or lower case.
Canonical order
In CSS, canonical order is used to refer to the order in which separate values need to be specified (or parsed) or are to be serialized as part of a CSS property value.
Canonical Serialization
A deterministic encoding of data used when equivalent inputs must produce identical bytes for hashing or signatures.
Canonical URL
A canonical URL identifies the preferred URL for a page or substantially duplicate content in search-related metadata.
Canvas
The canvas element is part of HTML5 and allows for dynamic, scriptable rendering>) of 2D and 3D shapes and bitmap images.
Capability-Based Security
An authorization model that grants specific authority through protected resource references or credentials.
caption-side
The caption-side CSS property puts the content of a table's caption on the specified side.
Card sorting
Card sorting is a simple technique used in Information architecture whereby people involved in the design of a website (or other type of product) are invited to write down the content / services / features they feel the product should contain, and then…
Caret
A caret (sometimes called a "text cursor") is an indicator displayed on the screen to indicate where text input will be inserted.
caret-color
The caret-color CSS property sets the color of the insertion caret, sometimes referred to as the text input cursor.
Causal Consistency
A consistency model that preserves cause-and-effect relationships while allowing independent operations to be ordered differently.
CDN
A CDN (Content Delivery Network) is a group of servers spread out over many locations.
Certificate authority
A certificate authority (CA) is an organization that signs digital certificates and their associated public keys, thereby asserting that the contained information and keys are correct.
Certificate Pinning
Restricting a client's accepted server identity to expected certificates or public keys under a defined trust policy.
Challenge-response authentication
In security protocols, a challenge is some data sent to the client by the server in order to generate a different response each time.
Changelog
A changelog records meaningful changes between software releases so users can assess an update.
Channel Binding
A mechanism that binds an authentication exchange to its underlying secure transport channel.
Character reference
An HTML character reference is an escape sequence of characters that is used to represent another character in the rendered web page.
Character set
A character set is an encoding system to let computers know how to recognize Character, including letters, numbers, punctuation marks, and whitespace.
checkdate()
checkdate() — Validate a Gregorian date.
checkdnsrr()
checkdnsrr() — Check DNS records corresponding to a given Internet host name or IP address.
checked()
checked(): Outputs the HTML checked attribute.
Checkpoint Barrier
A stream marker used to coordinate a consistent checkpoint of operator state and input positions.
check_admin_referer()
check_admin_referer(): Ensures intent by verifying that a user was referred from another admin page with the correct security nonce.
check_ajax_referer()
check_ajax_referer(): Verifies the Ajax request to prevent processing requests external of the blog.
check_comment()
check_comment(): Checks whether a comment passes internal checks to be allowed to add.
chgrp()
chgrp() — Changes file group.
chr()
chr() — Generate a single-byte string from a number.
chunk_split()
chunk_split() — Can be used to split a string into smaller chunks which is useful for e.g. converting base64_encode output to match RFC 2045 semantics.
Cipher
In cryptography, a cipher is an algorithm that can encrypt plaintext to make it unreadable, and to decrypt the encoded data back to plaintext again.
Cipher suite
Cipher suite is a combination of a key exchange algorithm, authentication method, bulk encryption cipher, and message authentication code.
Ciphertext
In cryptography, ciphertext is a scrambled message that conveys information but is not legible unless decrypted with the right cipher and the right secret (usually a key), reproducing the original Plaintext.
class_exists()
class_exists() — Checks if the class has been defined.
class_implements()
class_implements() — Return the interfaces which are implemented by the given class or interface.
class_parents()
class_parents() — Return the parent classes of the given class.
class_uses()
class_uses() — Return the traits used by the given class.