PHP · Theory

stripos()

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Theory

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stripos()

Sara only reaches for stripos() when Sara walking through stripos has to stay correct in a small live site.

Do stripos() once by hand. one stripos step Sara can write from memory. Change one input. Say the new result out loud.

Without stripos(), a small live site gets messy and Sara walking through stripos is hard to trust.

Use stripos() when Sara walking through stripos must stay clear. If a simpler PHP step works, use that instead.

stripos() trap — copy-pasting stripos without a dry-run. Sara loses marks for that every viva.

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

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

Exam tip

Say stripos() in one breath, then one stripos step Sara can write from memory, then copy-pasting stripos without a dry-run.

Example

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

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

Short notes

Defstripos() — Sara uses it for Sara walking through stripos in a small live site.
Rulestripos() → one stripos step Sara can write from memory.
Rememberstripos() + Apache/Nginx (a small live site).
Usestripos() in a small live site (Sara walking through stripos).
Trapstripos() — copy-pasting stripos without a dry-run.
Exstripos() → Sara walking through stripos.

PHP · Theory

stripos()

← All stacks

Theory

246/352

stripos()

Sara only reaches for stripos() when Sara walking through stripos has to stay correct in a small live site.

Do stripos() once by hand. one stripos step Sara can write from memory. Change one input. Say the new result out loud.

Without stripos(), a small live site gets messy and Sara walking through stripos is hard to trust.

Use stripos() when Sara walking through stripos must stay clear. If a simpler PHP step works, use that instead.

stripos() trap — copy-pasting stripos without a dry-run. Sara loses marks for that every viva.

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

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

Exam tip

Say stripos() in one breath, then one stripos step Sara can write from memory, then copy-pasting stripos without a dry-run.

Example

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

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

Short notes

Defstripos() — Sara uses it for Sara walking through stripos in a small live site.
Rulestripos() → one stripos step Sara can write from memory.
Rememberstripos() + Apache/Nginx (a small live site).
Usestripos() in a small live site (Sara walking through stripos).
Trapstripos() — copy-pasting stripos without a dry-run.
Exstripos() → Sara walking through stripos.

stripos()

Example

Short notes

Questions

stripos()

Example

Short notes

Questions