PHP · Theory

array_shift()

Theory

161/352

array_shift()

array_shift() (function) is simple if you keep it on paper. Amit uses it for Amit walking through array_shift function in a small live site.

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

Skip array_shift() (function) and copy-pasting array_shift function without a dry-run shows up in a small live site.

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

array_shift() (function) trap: copy-pasting array_shift function without a dry-run. Amit loses marks for that every viva.

array_shift() (function) is not a lonely heading. Amit ties it to Amit walking through array_shift function.

Close array_shift() (function) with: “If I skip it, Amit walking through array_shift function goes wrong like this: copy-pasting array_shift function without a dry-run.”

Exam tip

Board: Amit walking through array_shift function. Dry-run array_shift() (function). Name the trap: copy-pasting array_shift function without a dry-run.

Example

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

Short notes

Defarray_shift() (function) — Amit uses it for Amit walking through array_shift function in a small live site.
Rulearray_shift() (function) → one array_shift function step Amit can write from memory.
Rememberarray_shift() (function) + a .php page (a small live site).
Usearray_shift() (function) in a small live site (Amit walking through array_shift function).
Traparray_shift() (function) — copy-pasting array_shift function without a dry-run.
Exarray_shift() (function) → Amit walking through array_shift function.

PHP · Theory

array_shift()

← All stacks

Theory

161/352

array_shift()

array_shift() (function) is simple if you keep it on paper. Amit uses it for Amit walking through array_shift function in a small live site.

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

Skip array_shift() (function) and copy-pasting array_shift function without a dry-run shows up in a small live site.

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

array_shift() (function) trap: copy-pasting array_shift function without a dry-run. Amit loses marks for that every viva.

array_shift() (function) is not a lonely heading. Amit ties it to Amit walking through array_shift function.

Close array_shift() (function) with: “If I skip it, Amit walking through array_shift function goes wrong like this: copy-pasting array_shift function without a dry-run.”

Exam tip

Board: Amit walking through array_shift function. Dry-run array_shift() (function). Name the trap: copy-pasting array_shift function without a dry-run.

Example

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

Short notes

Defarray_shift() (function) — Amit uses it for Amit walking through array_shift function in a small live site.
Rulearray_shift() (function) → one array_shift function step Amit can write from memory.
Rememberarray_shift() (function) + a .php page (a small live site).
Usearray_shift() (function) in a small live site (Amit walking through array_shift function).
Traparray_shift() (function) — copy-pasting array_shift function without a dry-run.
Exarray_shift() (function) → Amit walking through array_shift function.

array_shift()

Example

Short notes

Questions

array_shift()

Example

Short notes

Questions