Advanced terms
Vector Clocks — Distributed Causality
A vector clock is a data structure — one counter per node — that tracks causal ordering of events across distributed nodes without a shared clock, enabling detection of concurrent events and causal relationships.
3mo ago
architecture advanced
Variable Variables ($$var) Risks
PHP 3.0+
$$var creates a variable whose name is the value of $var — using it with user input allows arbitrary variable access/creation and is effectively a backdoor.
3mo ago
security advanced
Visitor Pattern
PHP 5.0+
1
A behavioural pattern that separates an algorithm from the objects it operates on — adding new operations to a class hierarchy without modifying those classes.
3mo ago
quality advanced