PHP · Theory

String

Theory

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String is a PHP idea you prove with a String dry-run, not with a slogan.

Keep String small. Rohit should finish a String dry-run in a few lines, not a 40-line dump.

String exists so Rohit can keep a String dry-run correct in a campus project.

Rohit ships String in a campus project. That is the use case worth saying.

String trap — skipping the failure case for String. Rohit loses marks for that every viva.

Place String next to nearby PHP work — one String step Rohit can write from memory is the link.

Close String with — “If I skip it, a String dry-run goes wrong like this: skipping the failure case for String.”

Exam tip

For String: definition + a campus project + one failure.

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

String — explode splits strings; count works on arrays.