Php terms
The engine behind the web's most-used server-side language
PHP powers an enormous portion of the web — from WordPress and Laravel to custom e-commerce platforms. This category covers the language internals, core functions, OOP features, type system, performance patterns, and PHP-specific quirks that every serious PHP developer should understand deeply. Whether you are writing procedural scripts or building full-stack applications with modern PHP 8.x features, these terms form the foundation.
Intersection & DNF Types in Practice PHP 8.1+
PHP 8.1 intersection types (A&B) and PHP 8.2 DNF types ((A&B)|null) allow precise type constraints for objects implementing multiple interfaces.
2mo ago
php advanced
Integer Overflow & PHP_INT_MAX PHP 4.0+
PHP integers silently overflow to float when exceeding PHP_INT_MAX (9.2×10¹⁸ on 64-bit) — use BCMath or GMP for arbitrary precision arithmetic.
2mo ago
php intermediate
include vs require vs *_once PHP 5.0+
require halts on failure; include warns and continues. The _once variants prevent double-loading — use require_once for dependencies.
2mo ago
php beginner
Interface vs Abstract Class PHP 5.0+ Interfaces define pure capability contracts with no state; abstract classes add shared implementation. Use interfaces for type contracts, abstract for shared behaviour.
2mo ago
php intermediate
Interfaces PHP 5.0+
Contracts that define a set of method signatures a class must implement, enabling polymorphism without inheritance.
2mo ago
php intermediate
Intersection Types (PHP 8.1) PHP 8.1+
Require a value to satisfy multiple type constraints simultaneously, declared as TypeA&TypeB — useful for combining interfaces.
2mo ago
php intermediate
intval() / Type Casting PHP 5.0+
Casting user input to int or float is a safe way to enforce numeric types — cheaper than regex validation for IDs.
2mo ago
php beginner
Iterators & IteratorAggregate PHP 5.0+
PHP interfaces that allow custom objects to be used in foreach loops, enabling lazy and memory-efficient iteration over any data source.
2mo ago
php intermediate