PHP · Theory

array_filter()

Theory

123/352

array_filter()

array_filter() (function) is simple if you keep it on paper. Asha uses it for a array_filter function dry-run in a viva board.

array_filter() (function) order: meaning → one array_filter function step Asha can write from memory → one limit. Dumping ten features helps nobody.

Without array_filter() (function), a viva board gets messy and a array_filter function dry-run is hard to trust.

Asha ships array_filter() (function) in a viva board. That is the use case worth saying.

array_filter() (function) miss: skipping the failure case for array_filter function. Fix it before you talk about advanced PHP.

After array_filter() (function), Asha should still remember skipping the failure case for array_filter function.

One breath for array_filter() (function), then a array_filter function dry-run, then skipping the failure case for array_filter function. Sit down.

Exam tip

Say array_filter() (function) in one breath, then one array_filter function step Asha can write from memory, then skipping the failure case for array_filter function.

Example

<?php
// array_filter()
$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_filter(): scores array, print avg, then high marks. Say the output.

Short notes

Defarray_filter() (function) — Asha uses it for a array_filter function dry-run in a viva board.
Rulearray_filter() (function) → one array_filter function step Asha can write from memory.
Rememberarray_filter() (function) + the PHP runtime (a viva board).
Usearray_filter() (function) in a viva board (a array_filter function dry-run).
Traparray_filter() (function) — skipping the failure case for array_filter function.
Exarray_filter() (function) → a array_filter function dry-run.

PHP · Theory

array_filter()

← All stacks

Theory

123/352

array_filter()

array_filter() (function) is simple if you keep it on paper. Asha uses it for a array_filter function dry-run in a viva board.

array_filter() (function) order: meaning → one array_filter function step Asha can write from memory → one limit. Dumping ten features helps nobody.

Without array_filter() (function), a viva board gets messy and a array_filter function dry-run is hard to trust.

Asha ships array_filter() (function) in a viva board. That is the use case worth saying.

array_filter() (function) miss: skipping the failure case for array_filter function. Fix it before you talk about advanced PHP.

After array_filter() (function), Asha should still remember skipping the failure case for array_filter function.

One breath for array_filter() (function), then a array_filter function dry-run, then skipping the failure case for array_filter function. Sit down.

Exam tip

Say array_filter() (function) in one breath, then one array_filter function step Asha can write from memory, then skipping the failure case for array_filter function.

Example

<?php
// array_filter()
$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_filter(): scores array, print avg, then high marks. Say the output.

Short notes

Defarray_filter() (function) — Asha uses it for a array_filter function dry-run in a viva board.
Rulearray_filter() (function) → one array_filter function step Asha can write from memory.
Rememberarray_filter() (function) + the PHP runtime (a viva board).
Usearray_filter() (function) in a viva board (a array_filter function dry-run).
Traparray_filter() (function) — skipping the failure case for array_filter function.
Exarray_filter() (function) → a array_filter function dry-run.

array_filter()

Example

Short notes

Questions

array_filter()

Example

Short notes

Questions