PHP Interview Questions
What are the differences between include, require, include_once, and require_once in PHP?
Explain the difference between == and === in PHP.
What is the difference between GET and POST methods in PHP?
How does PHP handle sessions and cookies?
What are traits in PHP?
What is namespace in PHP and why is it used?
How can you prevent SQL Injection in PHP?
What are the differences between abstract classes and interfaces?
Explain difference between echo and print.
How to handle errors in PHP using try-catch blocks?
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Drupal Interview Questions
What are hooks in Drupal? Give an example.
Difference between Drupal 8/9/10 and previous versions.
What are entities and fields in Drupal?
Explain Drupal caching mechanisms.
What is a service in Drupal? How do you define one?
Difference between Block, View, and Paragraph.
How do you create a custom module in Drupal?
Explain Drupal routing system and .routing.yml.
How do you implement Batch API in Drupal?
How to check if an entity is referenced before deleting?
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MySQL Interview Questions
- Difference between INNER JOIN, LEFT JOIN, RIGHT JOIN.
- What is normalization? Explain 1NF, 2NF, and 3NF.
- Difference between PRIMARY KEY and UNIQUE KEY.
- What are indexes and why are they used?
- Explain ACID properties in databases.
- Difference between CHAR and VARCHAR.
- What is a foreign key and how does it enforce referential integrity?
- How to find duplicate rows in a table?
- Difference between DELETE, TRUNCATE, and DROP.
- How do you optimize slow queries in MySQL?
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