explode() — PHP Technical Interview Questions & Answers

explode()

explode()

  • explode() (function) is a PHP topic. In plain words you use it for function add($a, $b) in a marks helper. Don’t start with a slogan — start with that picture.
  • Smallest example: function name($x) { return $x; }. Type it, run it, and say what you see. If you can do that from memory, you know explode() (function).
  • From the example next to this theory: explode() — explode splits strings; count works on arrays.
  • Trap: no return so the caller gets null. Fix that before you talk about advanced PHP.
  • Viva: what is explode() (function)? Then show function name($x) { return $x; }. Then name the trap.

Technical Interview Tip: What is explode() (function)? Show this: function name($x) { return $x; }. Trap: no return so the caller gets null.

Code Examples for explode()

explode() — working example

<?php
$s = "prep,pilot,php";
$parts = explode(",", $s);
echo strtoupper($parts[0]) . " count=" . count($parts);

explode() — explode splits strings; count works on arrays.

How to Explain explode() to an Interviewer

What is explode() (function)?

Used for function add($a, $b) a marks helper Not just the heading

Give one small example of explode() (function).

function name($x) { return $x; } explode() — explode splits strings; count works on arrays

What mistake do beginners make with explode() (function)?

no return so the caller gets null Show the fix

Where do you use explode() (function)?

a marks helper function add($a, $b)