PHP · Theory

print()

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Theory

217/352

print()

If you can teach print() (function) using Hello, Asha, you know it. If you only know the heading, you don’t.

print() (function) on the board — echo / print. Then say what Hello, Asha looks like after.

print() (function) exists so Amit can keep Hello, Asha correct in a web page.

Amit ships print() (function) in a web page. That is the use case worth saying.

print() (function) miss — missing semicolon. Fix it before you talk about advanced PHP.

Place print() (function) next to nearby PHP work — echo / print is the link.

Viva for print() (function) — what it is → echo / print → the mistake (missing semicolon).

Exam tip

Say print() (function) in one breath, then echo / print, then missing semicolon.

Example

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

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

Short notes

Defprint() (function) — Amit uses it for Hello, Asha in a web page.
Ruleprint() (function) → echo / print.
Rememberprint() (function) + the PHP runtime (a web page).
Useprint() (function) in a web page (Hello, Asha).
Trapprint() (function) — missing semicolon.
Exprint() (function) → Hello, Asha.

PHP · Theory

print()

← All stacks

Theory

217/352

print()

If you can teach print() (function) using Hello, Asha, you know it. If you only know the heading, you don’t.

print() (function) on the board — echo / print. Then say what Hello, Asha looks like after.

print() (function) exists so Amit can keep Hello, Asha correct in a web page.

Amit ships print() (function) in a web page. That is the use case worth saying.

print() (function) miss — missing semicolon. Fix it before you talk about advanced PHP.

Place print() (function) next to nearby PHP work — echo / print is the link.

Viva for print() (function) — what it is → echo / print → the mistake (missing semicolon).

Exam tip

Say print() (function) in one breath, then echo / print, then missing semicolon.

Example

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

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

Short notes

Defprint() (function) — Amit uses it for Hello, Asha in a web page.
Ruleprint() (function) → echo / print.
Rememberprint() (function) + the PHP runtime (a web page).
Useprint() (function) in a web page (Hello, Asha).
Trapprint() (function) — missing semicolon.
Exprint() (function) → Hello, Asha.

print()

Example

Short notes

Questions

print()

Example

Short notes

Questions