PHP · Theory

phpinfo()

Theory

342/352

phpinfo()

phpinfo() is simple if you keep it on paper. Asha uses it for phpinfo on Asha's board in a campus project.

phpinfo() order — meaning → one phpinfo step Asha can write from memory → one limit. Dumping ten features helps nobody.

Without phpinfo(), a campus project gets messy and phpinfo on Asha's board is hard to trust.

Use phpinfo() when phpinfo on Asha's board must stay clear. If a simpler PHP step works, use that instead.

phpinfo() trap — skipping the failure case for phpinfo. Asha loses marks for that every viva.

phpinfo() is not a lonely heading. Asha ties it to phpinfo on Asha's board.

Close phpinfo() with: “If I skip it, phpinfo on Asha's board goes wrong like this: skipping the failure case for phpinfo.”

Exam tip

For phpinfo(): definition + a campus project + one failure.

Example

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

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

Short notes

Defphpinfo() — Asha uses it for phpinfo on Asha's board in a campus project.
Rulephpinfo() → one phpinfo step Asha can write from memory.
Rememberphpinfo() + Apache/Nginx (a campus project).
Usephpinfo() in a campus project (phpinfo on Asha's board).
Trapphpinfo() — skipping the failure case for phpinfo.
Exphpinfo() → phpinfo on Asha's board.

PHP · Theory

phpinfo()

← All stacks

Theory

342/352

phpinfo()

phpinfo() is simple if you keep it on paper. Asha uses it for phpinfo on Asha's board in a campus project.

phpinfo() order — meaning → one phpinfo step Asha can write from memory → one limit. Dumping ten features helps nobody.

Without phpinfo(), a campus project gets messy and phpinfo on Asha's board is hard to trust.

Use phpinfo() when phpinfo on Asha's board must stay clear. If a simpler PHP step works, use that instead.

phpinfo() trap — skipping the failure case for phpinfo. Asha loses marks for that every viva.

phpinfo() is not a lonely heading. Asha ties it to phpinfo on Asha's board.

Close phpinfo() with: “If I skip it, phpinfo on Asha's board goes wrong like this: skipping the failure case for phpinfo.”

Exam tip

For phpinfo(): definition + a campus project + one failure.

Example

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

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

Short notes

Defphpinfo() — Asha uses it for phpinfo on Asha's board in a campus project.
Rulephpinfo() → one phpinfo step Asha can write from memory.
Rememberphpinfo() + Apache/Nginx (a campus project).
Usephpinfo() in a campus project (phpinfo on Asha's board).
Trapphpinfo() — skipping the failure case for phpinfo.
Exphpinfo() → phpinfo on Asha's board.

phpinfo()

Example

Short notes

Questions

phpinfo()

Example

Short notes

Questions