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Static Variables

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Static Variables

Static Variables is simple if you keep it on paper. Meera uses it for $marks = 72 in a result script.

Keep Static Variables small. Meera should finish $marks = 72 in a few lines, not a 40-line dump.

Without Static Variables, a result script gets messy and $marks = 72 is hard to trust.

Meera ships Static Variables in a result script. That is the use case worth saying.

Static Variables miss — using marks without $. Fix it before you talk about advanced PHP.

Static Variables is not a lonely heading. Meera ties it to $marks = 72.

One breath for Static Variables, then $marks = 72, then using marks without $. Sit down.

Exam tip

Say Static Variables in one breath, then $name = 'Asha';, then using marks without $.

Example

<?php
// Static Variables
$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";
}

Static Variables: scores array, print avg, then high marks. Say the output.

Short notes

DefStatic Variables — Meera uses it for $marks = 72 in a result script.
RuleStatic Variables → $name = 'Asha';.
RememberStatic Variables + the PHP runtime (a result script).
UseStatic Variables in a result script ($marks = 72).
TrapStatic Variables — using marks without $.
ExStatic Variables → $marks = 72.

<?php // Static Variables $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"; }

Static Variables

Example

Short notes

Questions

Static Variables

Example

Short notes

Questions