<?php
function foo1() {
    try {
        throw new Exception("not catch");
        return true;
    } finally {
        try {
            throw new Exception("caught");
        } catch (Exception $e) {
        }
    }
}
try {
    $foo = foo1();
    var_dump($foo);
} catch (Exception $e) {
    do {
        var_dump($e->getMessage());
    } while ($e = $e->getPrevious());
}

function foo2() {
    try  {
        try {
            throw new Exception("caught");
            return true;
        } finally {
            try {
                throw new Exception("caught");
            } catch (Exception $e) {
            }
        }
    } catch (Exception $e) {
    }
}

$foo = foo2();
var_dump($foo);

function foo3() {
    try {
        throw new Exception("not caught");
        return true;
    } finally {
        try {
            throw new NotExists();
        } catch (Exception $e) {
        }
    }
}

$bar = foo3();
?>