PHP · Theory

strchr()

Theory

240/352

strchr()

strchr() is a PHP topic. In plain words you use it for a short strchr example in a college portal page. Don’t start with a slogan — start with that picture.

Smallest example: the smallest strchr example you can type. Type it, run it, and say what you see. If you can do that from memory, you know strchr().

From the example next to this theory — strchr(): scores array, print avg, then high marks.

Trap — only saying “strchr” with no example. Fix that before you talk about advanced PHP.

Viva — what is strchr()? Then show the smallest strchr example you can type. Then name the trap.

Exam tip

What is strchr()? Show this: the smallest strchr example you can type. Trap: only saying “strchr” with no example.

Example

<?php
// strchr()
$scores = [80, 90, 70];
$avg = array_sum($scores) / count($scores);
echo "avg=" . number_format($avg, 1) . "\n";
foreach ($scores as $s) {
  if ($s >= 80) echo "high: $s\n";
}

strchr(): scores array, print avg, then high marks. Say the output.

Short notes

Defstrchr() — a short strchr example in a college portal page.
Rulethe smallest strchr example you can type
Traponly saying “strchr” with no example
Usea college portal page

PHP · Theory

strchr()

← All stacks

Theory

240/352

strchr()

strchr() is a PHP topic. In plain words you use it for a short strchr example in a college portal page. Don’t start with a slogan — start with that picture.

Smallest example: the smallest strchr example you can type. Type it, run it, and say what you see. If you can do that from memory, you know strchr().

From the example next to this theory — strchr(): scores array, print avg, then high marks.

Trap — only saying “strchr” with no example. Fix that before you talk about advanced PHP.

Viva — what is strchr()? Then show the smallest strchr example you can type. Then name the trap.

Exam tip

What is strchr()? Show this: the smallest strchr example you can type. Trap: only saying “strchr” with no example.

Example

<?php
// strchr()
$scores = [80, 90, 70];
$avg = array_sum($scores) / count($scores);
echo "avg=" . number_format($avg, 1) . "\n";
foreach ($scores as $s) {
  if ($s >= 80) echo "high: $s\n";
}

strchr(): scores array, print avg, then high marks. Say the output.

Short notes

Defstrchr() — a short strchr example in a college portal page.
Rulethe smallest strchr example you can type
Traponly saying “strchr” with no example
Usea college portal page

strchr()

Example

Short notes

Questions

strchr()

Example

Short notes

Questions