PHP · Theory

ord()

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Theory

215/352

ord()

Zara only reaches for ord() when a ord dry-run has to stay correct in a small live site.

ord() on the board — one ord step Zara can write from memory. Then say what a ord dry-run looks like after.

Skip ord() and copy-pasting ord without a dry-run shows up in a small live site.

Use ord() when a ord dry-run must stay clear. If a simpler PHP step works, use that instead.

Don’t do this with ord() — copy-pasting ord without a dry-run. Interviewers spot it in ten seconds.

Place ord() next to nearby PHP work — one ord step Zara can write from memory is the link.

Viva for ord(): what it is → one ord step Zara can write from memory → the mistake (copy-pasting ord without a dry-run).

Exam tip

For ord(): definition + a small live site + one failure.

Example

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

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

Short notes

Deford() — Zara uses it for a ord dry-run in a small live site.
Ruleord() → one ord step Zara can write from memory.
Rememberord() + a .php page (a small live site).
Useord() in a small live site (a ord dry-run).
Trapord() — copy-pasting ord without a dry-run.
Exord() → a ord dry-run.

PHP · Theory

ord()

← All stacks

Theory

215/352

ord()

Zara only reaches for ord() when a ord dry-run has to stay correct in a small live site.

ord() on the board — one ord step Zara can write from memory. Then say what a ord dry-run looks like after.

Skip ord() and copy-pasting ord without a dry-run shows up in a small live site.

Use ord() when a ord dry-run must stay clear. If a simpler PHP step works, use that instead.

Don’t do this with ord() — copy-pasting ord without a dry-run. Interviewers spot it in ten seconds.

Place ord() next to nearby PHP work — one ord step Zara can write from memory is the link.

Viva for ord(): what it is → one ord step Zara can write from memory → the mistake (copy-pasting ord without a dry-run).

Exam tip

For ord(): definition + a small live site + one failure.

Example

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

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

Short notes

Deford() — Zara uses it for a ord dry-run in a small live site.
Ruleord() → one ord step Zara can write from memory.
Rememberord() + a .php page (a small live site).
Useord() in a small live site (a ord dry-run).
Trapord() — copy-pasting ord without a dry-run.
Exord() → a ord dry-run.

ord()

Example

Short notes

Questions

ord()

Example

Short notes

Questions