PHP · Theory

md5()

Theory

208/352

md5()

md5() is a PHP topic. In plain words you use it for a short md5 example in a college portal page. Don’t start with a slogan — start with that picture.

Smallest example: the smallest md5 example you can type. Type it, run it, and say what you see. If you can do that from memory, you know md5().

From the example next to this theory — md5(): scores array, print avg, then high marks.

Trap — only saying “md5” with no example. Fix that before you talk about advanced PHP.

Viva — what is md5()? Then show the smallest md5 example you can type. Then name the trap.

Exam tip

What is md5()? Show this: the smallest md5 example you can type. Trap: only saying “md5” with no example.

Example

<?php
// md5()
$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";
}

md5(): scores array, print avg, then high marks. Say the output.

Short notes

Defmd5() — a short md5 example in a college portal page.
Rulethe smallest md5 example you can type
Traponly saying “md5” with no example
Usea college portal page

PHP · Theory

md5()

← All stacks

Theory

208/352

md5()

md5() is a PHP topic. In plain words you use it for a short md5 example in a college portal page. Don’t start with a slogan — start with that picture.

Smallest example: the smallest md5 example you can type. Type it, run it, and say what you see. If you can do that from memory, you know md5().

From the example next to this theory — md5(): scores array, print avg, then high marks.

Trap — only saying “md5” with no example. Fix that before you talk about advanced PHP.

Viva — what is md5()? Then show the smallest md5 example you can type. Then name the trap.

Exam tip

What is md5()? Show this: the smallest md5 example you can type. Trap: only saying “md5” with no example.

Example

<?php
// md5()
$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";
}

md5(): scores array, print avg, then high marks. Say the output.

Short notes

Defmd5() — a short md5 example in a college portal page.
Rulethe smallest md5 example you can type
Traponly saying “md5” with no example
Usea college portal page

md5()

Example

Short notes

Questions

md5()

Example

Short notes

Questions