#Php

25 questions

• What is PHP and where is it used?PHP#languageJunior›
• What are PHP's variable types?PHP#languageJunior›
• How do arrays work in PHP?PHP#data-structuresJunior›
• How do you define functions with types and defaults?PHP#functionsJunior›
• How do you work with strings in PHP?PHP#languageJunior›
• What are PHP superglobals?PHP#languageJunior›
• What control-flow constructs does PHP have?PHP#languageJunior›
• How do classes and objects work in PHP?PHP#oopJunior›
• What is the difference between include and require?PHP#languageJunior›
• What are the error/exception types in PHP?PHP#error-handlingJunior›
• How do inheritance, abstract classes and interfaces work?PHP#oopMiddle›
• What are traits and when do you use them?PHP#oopMiddle›
• How do namespaces work in PHP?PHP#languageMiddle›
• What is Composer and how does autoloading work?PHP#toolingMiddle›
• How do type declarations and strict types work?PHP#languageMiddle›
• How do you handle exceptions properly?PHP#error-handlingMiddle›
• What are PHP magic methods?PHP#oopMiddle›
• How do sessions and cookies work in PHP?PHP#securityMiddle›
• How does dependency injection work in modern PHP?PHP#architectureSenior›
• What major features did PHP 8.x add?PHP#languageSenior›
• What are closures and callables in PHP?PHP#functionsMiddle›
• How do enums work in PHP 8.1+?PHP#oopMiddle›
• What is late static binding (static:: vs self::)?PHP#oopMiddle›
• What are PSR standards and why do they matter?PHP#architectureSenior›
• How would you tune a high-traffic WordPress site for performance?Site Reliability & Operations#wordpressSenior›