README

This is a handy little helper function that is used to replace the common pattern of isset($a, $a['b']) ? $a['b'] : $c; which can be ugly and redundant.

You can think of it as a long lost brother of isset().

It does two things:

• It silences down the PHP Undefined index notice, when trying to access an inexistent key in an array
• And returns a default value if the key is not set

Usage

mixed isget(array $inputarray['somekey'], mixed $default_value)

If the somekey key is set, the function will return its value, if it's not, it will return the provided default value (or false by default);

It comes in really handy, if your function supports an array of options, and you don't want to worry about checking if the option has been set or not. i.e.

function do_something($required_param, $options = array()) {
    if (isget($options['forceint']) === true) {
        $required_param = intval($required_param);
    }
    if (isget($options['uppercase']) === true) {
        $required_param = strtoupper($required_param);
    }
    ...
    return $required_param;
}
$a = 12.34;
echo do_something($a);
// 12.34
echo do_something($a, array('forceint' => true));
// 12

If you need to go deeper, you can.

$dream = array();
echo isget($dream['within_a_dream']['within_a_dream']['within_a_dream']['...'], 'inception!');
// inception!

Installation

The easiest way to install this library is to use Composer and add the following to your project's composer.json file:

{
    "require": {
        "artbit/isget": "dev-master"
    }
}

Then, when you run composer install, everything will fall magically into place, and the isget() function will be available to your project, as long as you are including Composer's autoloader.

However, you do not need Composer to use this library.

This library has no dependencies and should work on older versions of PHP. Download the code and include src/isget.php in your project, and all should work fine.