PHP · Theory

Read File

Theory

47/352

Read File

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

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

From the example next to this theory — Read File: scores array, print avg, then high marks.

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

Viva — what is Read File? Then show the smallest Read File example you can type. Then name the trap.

Exam tip

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

Example

<?php
// Read File
$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";
}

Read File: scores array, print avg, then high marks. Say the output.

Short notes

DefRead File — a short Read File example in a college portal page.
Rulethe smallest Read File example you can type
Traponly saying “Read File” with no example
Usea college portal page

PHP · Theory

Read File

← All stacks

Theory

47/352

Read File

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

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

From the example next to this theory — Read File: scores array, print avg, then high marks.

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

Viva — what is Read File? Then show the smallest Read File example you can type. Then name the trap.

Exam tip

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

Example

<?php
// Read File
$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";
}

Read File: scores array, print avg, then high marks. Say the output.

Short notes

DefRead File — a short Read File example in a college portal page.
Rulethe smallest Read File example you can type
Traponly saying “Read File” with no example
Usea college portal page

Read File

Example

Short notes

Questions

Read File

Example

Short notes

Questions