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Exception Handling

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Exception Handling

Exception Handling is simple if you keep it on paper. Isha uses it for divide total / count in a report script.

Exception Handling on the board — try/catch + log. Then say what divide total / count looks like after.

Without Exception Handling, a report script gets messy and divide total / count is hard to trust.

Isha ships Exception Handling in a report script. That is the use case worth saying.

Exception Handling miss — empty catch. Fix it before you talk about advanced PHP.

Exception Handling is not a lonely heading. Isha ties it to divide total / count.

One breath for Exception Handling, then divide total / count, then empty catch. Sit down.

Exam tip

Board: divide total / count. Dry-run Exception Handling. Name the trap: empty catch.

Example

<?php
// Exception Handling
$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";
}

Exception Handling: scores array, print avg, then high marks. Say the output.

Short notes

DefException Handling — Isha uses it for divide total / count in a report script.
RuleException Handling → try/catch + log.
RememberException Handling + Apache/Nginx (a report script).
UseException Handling in a report script (divide total / count).
TrapException Handling — empty catch.
ExException Handling → divide total / count.

<?php // Exception Handling $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"; }

Exception Handling

Example

Short notes

Questions

Exception Handling

Example

Short notes

Questions