PHP · Theory

substr_compare()

Theory

267/352

substr_compare()

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

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

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

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

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

Exam tip

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

Example

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

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

Short notes

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

PHP · Theory

substr_compare()

← All stacks

Theory

267/352

substr_compare()

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

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

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

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

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

Exam tip

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

Example

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

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

Short notes

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

substr_compare()

Example

Short notes

Questions

substr_compare()

Example

Short notes

Questions