Multiple Catch

Separate catch blocks can handle different exception classes.

multiple_catch.php

<?php
$mode = ;

try {
    if ($mode === "empty") {
        throw new InvalidArgumentException("missing");
    }

    if ($mode === "short") {
        throw new LengthException("short");
    }

    $status = "accepted";
} catch (InvalidArgumentException $error) {
    $status = "missing";
} catch (LengthException $error) {
    $status = "too_short";
}

echo "mode=" . $mode . "\n";
echo "status=" . $status . "\n";

<?php
$mode = ;

try {
    if ($mode === "empty") {
        throw new InvalidArgumentException("missing");
    }

    if ($mode === "short") {
        throw new LengthException("short");
    }

    $status = "accepted";
} catch (InvalidArgumentException $error) {
    $status = "missing";
} catch (LengthException $error) {
    $status = "too_short";
}

echo "mode=" . $mode . "\n";
echo "status=" . $status . "\n";

<?php
$mode = ;

try {
    if ($mode === "empty") {
        throw new InvalidArgumentException("missing");
    }

    if ($mode === "short") {
        throw new LengthException("short");
    }

    $status = "accepted";
} catch (InvalidArgumentException $error) {
    $status = "missing";
} catch (LengthException $error) {
    $status = "too_short";
}

echo "mode=" . $mode . "\n";
echo "status=" . $status . "\n";

specific handler Specific exception classes let code name the kind of recovery it is doing.