MySQLi SELECT — PHP Technical Interview Questions & Answers

MySQLi SELECT

MySQLi SELECT

  • MySQLi SELECT is a PHP topic. In plain words you use it for fetch marks by roll in the college DB. Don’t start with a slogan — start with that picture.
  • Smallest example: prepared statement. Type it, run it, and say what you see. If you can do that from memory, you know MySQLi SELECT.
  • From the example next to this theory: MySQLi SELECT — use prepared statements with PDO/MySQLi — never concatenate raw SQL.
  • Trap: string-concat SQL. Fix that before you talk about advanced PHP.
  • Viva: what is MySQLi SELECT? Then show prepared statement. Then name the trap.

Technical Interview Tip: What is MySQLi SELECT? Show this: prepared statement. Trap: string-concat SQL.

Code Examples for MySQLi SELECT

MySQLi SELECT — working example

<?php
// PDO sketch (connection details omitted)
// $pdo = new PDO($dsn, $user, $pass);
// $stmt = $pdo->prepare("SELECT id, name FROM users WHERE id = ?");
// $stmt->execute([1]);
// $row = $stmt->fetch();
$demo = ["id" => 1, "name" => "Asha"];
echo $demo["name"];

MySQLi SELECT — use prepared statements with PDO/MySQLi — never concatenate raw SQL.

How to Explain MySQLi SELECT to an Interviewer

What is MySQLi SELECT?

Used for fetch marks by roll the college DB Not just the heading

Give one small example of MySQLi SELECT.

prepared statement MySQLi SELECT — use prepared statements with PDO/MySQLi — never concatenate raw SQL

What mistake do beginners make with MySQLi SELECT?

string-concat SQL Show the fix

Where do you use MySQLi SELECT?

the college DB fetch marks by roll