PHP · Theory

strnatcasecmp()

Theory

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strnatcasecmp()

If you can teach strnatcasecmp() using Sara walking through strnatcasecmp, you know it. If you only know the heading, you don’t.

For strnatcasecmp(), a .php page is in play. Don’t blame it until you have traced Sara walking through strnatcasecmp.

strnatcasecmp() exists so Sara can keep Sara walking through strnatcasecmp correct in a small live site.

Sara ships strnatcasecmp() in a small live site. That is the use case worth saying.

If Sara walking through strnatcasecmp breaks under strnatcasecmp(), check copy-pasting strnatcasecmp without a dry-run first.

After strnatcasecmp(), Sara should still remember copy-pasting strnatcasecmp without a dry-run.

One breath for strnatcasecmp(), then Sara walking through strnatcasecmp, then copy-pasting strnatcasecmp without a dry-run. Sit down.

Exam tip

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

Example

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

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

Short notes

Defstrnatcasecmp() — Sara uses it for Sara walking through strnatcasecmp in a small live site.
Rulestrnatcasecmp() → one strnatcasecmp step Sara can write from memory.
Rememberstrnatcasecmp() + a .php page (a small live site).
Usestrnatcasecmp() in a small live site (Sara walking through strnatcasecmp).
Trapstrnatcasecmp() — copy-pasting strnatcasecmp without a dry-run.
Exstrnatcasecmp() → Sara walking through strnatcasecmp.

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

strnatcasecmp()

Example

Short notes

Questions

strnatcasecmp()

Example

Short notes

Questions