PHP · Theory

array_fill_keys()

Theory

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array_fill_keys()

Sara only reaches for array_fill_keys() (function) when array_fill_keys function on Sara's board has to stay correct in a viva board.

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

Skip array_fill_keys() (function) and only reciting the name of array_fill_keys function shows up in a viva board.

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

array_fill_keys() (function) miss: only reciting the name of array_fill_keys function. Fix it before you talk about advanced PHP.

array_fill_keys() (function) is not a lonely heading. Sara ties it to array_fill_keys function on Sara's board.

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

Exam tip

For array_fill_keys() (function): definition + a viva board + one failure.

Example

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

Short notes

Defarray_fill_keys() (function) — Sara uses it for array_fill_keys function on Sara's board in a viva board.
Rulearray_fill_keys() (function) → one array_fill_keys function step Sara can write from memory.
Rememberarray_fill_keys() (function) + the PHP runtime (a viva board).
Usearray_fill_keys() (function) in a viva board (array_fill_keys function on Sara's board).
Traparray_fill_keys() (function) — only reciting the name of array_fill_keys function.
Exarray_fill_keys() (function) → array_fill_keys function on Sara's board.

<?php // array_fill_keys() $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_fill_keys()

Example

Short notes

Questions

array_fill_keys()

Example

Short notes

Questions