PHP · Theory

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Theory

7/352

Print

Print is a PHP idea you prove with Hello, Asha, not with a slogan.

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

Skip Print and missing semicolon shows up in a web page.

Arun ships Print in a web page. That is the use case worth saying.

Print miss — missing semicolon. Fix it before you talk about advanced PHP.

Place Print next to nearby PHP work — echo / print is the link.

One breath for Print, then Hello, Asha, then missing semicolon. Sit down.

Exam tip

Board: Hello, Asha. Dry-run Print. Name the trap: 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 — Arun uses it for Hello, Asha in a web page.
RulePrint → echo / print.
RememberPrint + Apache/Nginx (a web page).
UsePrint in a web page (Hello, Asha).
TrapPrint — missing semicolon.
ExPrint → Hello, Asha.

PHP · Theory

Print

← All stacks

Theory

7/352

Print

Print is a PHP idea you prove with Hello, Asha, not with a slogan.

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

Skip Print and missing semicolon shows up in a web page.

Arun ships Print in a web page. That is the use case worth saying.

Print miss — missing semicolon. Fix it before you talk about advanced PHP.

Place Print next to nearby PHP work — echo / print is the link.

One breath for Print, then Hello, Asha, then missing semicolon. Sit down.

Exam tip

Board: Hello, Asha. Dry-run Print. Name the trap: 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 — Arun uses it for Hello, Asha in a web page.
RulePrint → echo / print.
RememberPrint + Apache/Nginx (a web page).
UsePrint in a web page (Hello, Asha).
TrapPrint — missing semicolon.
ExPrint → Hello, Asha.

Print

Example

Short notes

Questions

Print

Example

Short notes

Questions