with experiment

with.php

<?php
function with($var, \Closure $execute, \Closure $exit = null)
{
    try {
        $result = $execute($var);
        $exit($var);
    } catch (\Exception $e) {
        if (null == $exit) {
            return null;
        }

        $result = $exit($var, $e);
    }

    return $result;
}

// example: read from a file, ignoring any exceptions
with($f = new FileInputStream('foo.txt'),
     function(FileInputStream $f)
     {
         return $f->read();
     }
);
?>