PHP · Theory

strtr()

Theory

265/352

strtr()

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

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

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

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

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

Exam tip

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

Example

<?php
// strtr()
$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";
}

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

Short notes

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

PHP · Theory

strtr()

← All stacks

Theory

265/352

strtr()

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

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

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

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

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

Exam tip

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

Example

<?php
// strtr()
$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";
}

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

Short notes

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

strtr()

Example

Short notes

Questions

strtr()

Example

Short notes

Questions