PHP · Theory

array_rand()

Theory

152/352

array_rand()

array_rand() (function) is simple if you keep it on paper. Zara uses it for Zara walking through array_rand function in a first job task.

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

Without array_rand() (function), a first job task gets messy and Zara walking through array_rand function is hard to trust.

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

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

Place array_rand() (function) next to nearby PHP work — one array_rand function step Zara can write from memory is the link.

One breath for array_rand() (function), then Zara walking through array_rand function, then only reciting the name of array_rand function. Sit down.

Exam tip

Board: Zara walking through array_rand function. Dry-run array_rand() (function). Name the trap: only reciting the name of array_rand function.

Example

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

Short notes

Defarray_rand() (function) — Zara uses it for Zara walking through array_rand function in a first job task.
Rulearray_rand() (function) → one array_rand function step Zara can write from memory.
Rememberarray_rand() (function) + the PHP runtime (a first job task).
Usearray_rand() (function) in a first job task (Zara walking through array_rand function).
Traparray_rand() (function) — only reciting the name of array_rand function.
Exarray_rand() (function) → Zara walking through array_rand function.

PHP · Theory

array_rand()

← All stacks

Theory

152/352

array_rand()

array_rand() (function) is simple if you keep it on paper. Zara uses it for Zara walking through array_rand function in a first job task.

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

Without array_rand() (function), a first job task gets messy and Zara walking through array_rand function is hard to trust.

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

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

Place array_rand() (function) next to nearby PHP work — one array_rand function step Zara can write from memory is the link.

One breath for array_rand() (function), then Zara walking through array_rand function, then only reciting the name of array_rand function. Sit down.

Exam tip

Board: Zara walking through array_rand function. Dry-run array_rand() (function). Name the trap: only reciting the name of array_rand function.

Example

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

Short notes

Defarray_rand() (function) — Zara uses it for Zara walking through array_rand function in a first job task.
Rulearray_rand() (function) → one array_rand function step Zara can write from memory.
Rememberarray_rand() (function) + the PHP runtime (a first job task).
Usearray_rand() (function) in a first job task (Zara walking through array_rand function).
Traparray_rand() (function) — only reciting the name of array_rand function.
Exarray_rand() (function) → Zara walking through array_rand function.

array_rand()

Example

Short notes

Questions

array_rand()

Example

Short notes

Questions