PHP · Theory

Difference between Echo and Print

Theory

8/352

Difference between Echo and Print

echo can take multiple arguments: echo $a, $b; print cannot. print returns 1; echo is a language construct with no return. Speed difference is not a viva that matters. Say: we use echo.

Trap — a two-page table with no example.

Exam tip

echo for daily work. print = one arg + return 1.

Example

<?php
// Difference between Echo and 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";
}

Difference between Echo and Print: scores array, print avg, then high marks. Say the output.

Short notes

Defecho = common output. print = one value, returns 1.
RuleUse echo.
TrapPretending performance is the point.

PHP · Theory

Difference between Echo and Print

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Theory

8/352

Difference between Echo and Print

echo can take multiple arguments: echo $a, $b; print cannot. print returns 1; echo is a language construct with no return. Speed difference is not a viva that matters. Say: we use echo.

Trap — a two-page table with no example.

Exam tip

echo for daily work. print = one arg + return 1.

Example

<?php
// Difference between Echo and 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";
}

Difference between Echo and Print: scores array, print avg, then high marks. Say the output.

Short notes

Defecho = common output. print = one value, returns 1.
RuleUse echo.
TrapPretending performance is the point.

Difference between Echo and Print

Example

Short notes

Questions

Difference between Echo and Print

Example

Short notes

Questions