PHP · Theory

fprint()

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Theory

194/352

fprint()

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

For fprint(), the PHP runtime is in play. Don’t blame it until you have traced Hello, Asha.

Without fprint(), a web page gets messy and Hello, Asha is hard to trust.

fprint() shows up in a web page. Name Hello, Asha, not “a real-world scenario”.

If Hello, Asha breaks under fprint(), check missing semicolon first.

fprint() is not a lonely heading. Priya ties it to Hello, Asha.

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

Exam tip

Board: Hello, Asha. Dry-run fprint(). Name the trap: missing semicolon.

Example

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

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

Short notes

Deffprint() — Priya uses it for Hello, Asha in a web page.
Rulefprint() → echo / print.
Rememberfprint() + the PHP runtime (a web page).
Usefprint() in a web page (Hello, Asha).
Trapfprint() — missing semicolon.
Exfprint() → Hello, Asha.

PHP · Theory

fprint()

← All stacks

Theory

194/352

fprint()

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

For fprint(), the PHP runtime is in play. Don’t blame it until you have traced Hello, Asha.

Without fprint(), a web page gets messy and Hello, Asha is hard to trust.

fprint() shows up in a web page. Name Hello, Asha, not “a real-world scenario”.

If Hello, Asha breaks under fprint(), check missing semicolon first.

fprint() is not a lonely heading. Priya ties it to Hello, Asha.

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

Exam tip

Board: Hello, Asha. Dry-run fprint(). Name the trap: missing semicolon.

Example

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

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

Short notes

Deffprint() — Priya uses it for Hello, Asha in a web page.
Rulefprint() → echo / print.
Rememberfprint() + the PHP runtime (a web page).
Usefprint() in a web page (Hello, Asha).
Trapfprint() — missing semicolon.
Exfprint() → Hello, Asha.

fprint()

Example

Short notes

Questions

fprint()

Example

Short notes

Questions