PHP · Theory

array_multisort()

Theory

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array_multisort()

Zara only reaches for array_multisort() (function) when a array_multisort function dry-run has to stay correct in a first job task.

Keep array_multisort() (function) small. Zara should finish a array_multisort function dry-run in a few lines, not a 40-line dump.

Without array_multisort() (function), a first job task gets messy and a array_multisort function dry-run is hard to trust.

Zara ships array_multisort() (function) in a first job task. That is the use case worth saying.

If a array_multisort function dry-run breaks under array_multisort() (function), check only reciting the name of array_multisort function first.

array_multisort() (function) is not a lonely heading. Zara ties it to a array_multisort function dry-run.

Viva for array_multisort() (function): what it is → one array_multisort function step Zara can write from memory → the mistake (only reciting the name of array_multisort function).

Exam tip

For array_multisort() (function): definition + a first job task + one failure.

Example

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

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

Short notes

Defarray_multisort() (function) — Zara uses it for a array_multisort function dry-run in a first job task.
Rulearray_multisort() (function) → one array_multisort function step Zara can write from memory.
Rememberarray_multisort() (function) + a .php page (a first job task).
Usearray_multisort() (function) in a first job task (a array_multisort function dry-run).
Traparray_multisort() (function) — only reciting the name of array_multisort function.
Exarray_multisort() (function) → a array_multisort function dry-run.

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

array_multisort()

Example

Short notes

Questions

array_multisort()

Example

Short notes

Questions