I re-imagined data validation in PHP. Why did I do this? I found that current validation techniques are too strict and cannot be used alone.
So, I thought the following: validation is like a filter. A wall that has different doors, each door specific to a set of data. Data comes and in order to reach its destination, it has to go over the door. Now the door has rule-sets, these are the rules specific to a part from the data.
These rule sets are built from rules, that are the basic rules found in any validation system.
A wall can be built easily by simply grouping the rules to fit our needs.
Here is an example:
$title_ruleset = new MainRuleset('title', array( new NotEmpty() )); $description_ruleset = new MainRuleset('description', array( new NotEmpty() )); $categories_ruleset = new MainRuleset('categories', array( new NotEmpty() )); $door = new Door(array($title_ruleset, $description_ruleset, $categories_ruleset)); $vw = new ValidationWall($door); $post_passes = $vw->pass($post);
In this example we use the NotEmpty rule to check the title, the description and the category.
To use ValidationWall, you have to include the autoload file like:
Also you have to use the namespaces like:
use ValidationWallDoorMainDoor as Door; use ValidationWallRuleSetMainRuleset as MainRuleset; use ValidationWallRuleNotEmpty as NotEmpty; use ValidationWallRuleNumeric as RuleNumeric;
After you initialized ValidationWall, you can start building your wall to fit your needs.
- It is totally stand-alone, usable anywhere in any script
- Logically more understandable than general validation
- Rules are custom, meaning you can build any rule you want, you just have to implement the interface or extends the abstract class
- Build validation like you are playing Lego
You can find this little code here: