PHP · Theory

sprintf()

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Theory

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sprintf()

Sara only reaches for sprintf() when Hello, Asha has to stay correct in a web page.

sprintf() order — meaning → echo / print → one limit. Dumping ten features helps nobody.

sprintf() exists so Sara can keep Hello, Asha correct in a web page.

Sara ships sprintf() in a web page. That is the use case worth saying.

Don’t do this with sprintf() — missing semicolon. Interviewers spot it in ten seconds.

sprintf() is not a lonely heading. Sara ties it to Hello, Asha.

One breath for sprintf(), then Hello, Asha, then missing semicolon. Sit down.

Exam tip

For sprintf(): definition + a web page + one failure.

Example

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

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

Short notes

Defsprintf() — Sara uses it for Hello, Asha in a web page.
Rulesprintf() → echo / print.
Remembersprintf() + Apache/Nginx (a web page).
Usesprintf() in a web page (Hello, Asha).
Trapsprintf() — missing semicolon.
Exsprintf() → Hello, Asha.

PHP · Theory

sprintf()

← All stacks

Theory

228/352

sprintf()

Sara only reaches for sprintf() when Hello, Asha has to stay correct in a web page.

sprintf() order — meaning → echo / print → one limit. Dumping ten features helps nobody.

sprintf() exists so Sara can keep Hello, Asha correct in a web page.

Sara ships sprintf() in a web page. That is the use case worth saying.

Don’t do this with sprintf() — missing semicolon. Interviewers spot it in ten seconds.

sprintf() is not a lonely heading. Sara ties it to Hello, Asha.

One breath for sprintf(), then Hello, Asha, then missing semicolon. Sit down.

Exam tip

For sprintf(): definition + a web page + one failure.

Example

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

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

Short notes

Defsprintf() — Sara uses it for Hello, Asha in a web page.
Rulesprintf() → echo / print.
Remembersprintf() + Apache/Nginx (a web page).
Usesprintf() in a web page (Hello, Asha).
Trapsprintf() — missing semicolon.
Exsprintf() → Hello, Asha.

sprintf()

Example

Short notes

Questions

sprintf()

Example

Short notes

Questions