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PHP · Theory

microtime()

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Theory

289/352

microtime()

If you can teach microtime() (function) using a microtime function dry-run, you know it. If you only know the heading, you don’t.

microtime() (function) on the board: one microtime function step Isha can write from memory. Then say what a microtime function dry-run looks like after.

Without microtime() (function), a viva board gets messy and a microtime function dry-run is hard to trust.

microtime() (function) shows up in a viva board. Name a microtime function dry-run, not “a real-world scenario”.

Don’t do this with microtime() (function): only reciting the name of microtime function. Interviewers spot it in ten seconds.

microtime() (function) is not a lonely heading. Isha ties it to a microtime function dry-run.

Viva for microtime() (function): what it is → one microtime function step Isha can write from memory → the mistake (only reciting the name of microtime function).

Exam tip

For microtime() (function): definition + a viva board + one failure.

Example

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

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

Short notes

  • Defmicrotime() (function) — Isha uses it for a microtime function dry-run in a viva board.
  • Rulemicrotime() (function) → one microtime function step Isha can write from memory.
  • Remembermicrotime() (function) + Apache/Nginx (a viva board).
  • Usemicrotime() (function) in a viva board (a microtime function dry-run).
  • Trapmicrotime() (function) — only reciting the name of microtime function.
  • Exmicrotime() (function) → a microtime function dry-run.

Questions

1

Isha asks: why does microtime() (function) exist? Use a microtime function dry-run.

2

Name one PHP screen/job that needs microtime() (function).

3

How do you catch only reciting the name of microtime function?

4

Show microtime() (function) in Apache/Nginx terms — three lines max.

Previous← localtime()Nextstrftime() →
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