README

Add methods to determine whether a variable is blank or present.

Inspired by Ruby on Rails.

Idea

This package is a hackathon product. Idea was to port the Ruby on Rails methods blank and present to PHP.

PHP has the empty method, but more often I need to check whether a variable is not empty. That's why a notEmpty method is available as well.

See the list below to compare the different behaviour of these methods.

┌─────────────────────────┬─────────┬────────────┬─────────┬───────────┐
│          VALUE          │ EMPTY() │ NOTEMPTY() │ BLANK() │ PRESENT() │
├─────────────────────────┼─────────┼────────────┼─────────┼───────────┤
│ string ''               │ true    │            │ true    │           │
│ string 'acme'           │         │ true       │         │ true      │
│ string ' '              │         │ true       │ true    │           │
│ string '   '            │         │ true       │ true    │           │
│ string "\t\n"           │         │ true       │ true    │           │
│ int 0                   │ true    │            │ true    │           │
│ float 0.0               │ true    │            │ true    │           │
│ int 42                  │         │ true       │         │ true      │
│ float 3.14              │         │ true       │         │ true      │
│ string '0'              │ true    │            │ true    │           │
│ string '1337'           │         │ true       │         │ true      │
│ null                    │ true    │            │ true    │           │
│ bool true               │         │ true       │         │ true      │
│ bool false              │ true    │            │ true    │           │
│ array []                │ true    │            │ true    │           │
│ array ['acme']          │         │ true       │         │ true      │
│ object {}               │         │ true       │ true    │           │
│ object {"foo" => "bar"} │         │ true       │         │ true      │
└─────────────────────────┴─────────┴────────────┴─────────┴───────────┘

Requirements

• PHP

Installation

Packagist Entry https://packagist.org/packages/pixelbrackets/not-empty/

Source

https://gitlab.com/pixelbrackets/not-empty/

Mirror https://github.com/pixelbrackets/not-empty/

Usage

See tests/demo.php.

use Pixelbrackets\NotEmpty\Blank;
use Pixelbrackets\NotEmpty\NotEmpty;
use Pixelbrackets\NotEmpty\Present;

# Is a string empty? → Use PHPs »empty«
if (empty('')) { … }

# Is a string not empty? → Use »empty() === false«
if (empty('acme') === false) { … }

# → …or use »notEmpty« instead
if (NotEmpty::notEmpty('acme')) { … }

# A strings with whitespaces is blank → use a combination of conditions
if (is_string('   ') && empty(trim('   '))) { … }

# → …or use »blank« instead
if (Blank::blank('   ')) { … }

# → use »present« to check the opposite of »blank«
if (Present::present('acme')) { … }

💡 If you want to use the methods as global functions (blank() instead of the namespaced Pixelbrackets\NotEmpty\Blank::blank()) then install the »global« branch, using composer require pixelbrackets/not-empty:dev-global.

License

GNU General Public License version 2 or later

The GNU General Public License can be found at http://www.gnu.org/copyleft/gpl.html.

Author

Dan Untenzu (mail@pixelbrackets.de / @pixelbrackets)

Changelog

See ./CHANGELOG.md

Contribution

This script is Open Source, so please use, patch, extend or fork it.

This package is not in active delopment, contributions are welcome though.