Added Explode validator documentation

doc/book/validators/explode.md

@@ -0,0 +1,45 @@
+# Explode Validator
+
+`Zend\Validator\Explode` executes a validator for each item exploded.
+
+## Supported options
+
+The following options are supported for `Zend\Validator\Explode`:
+
+- `valueDelimiter`: Defines the delimiter used to explode the value to an array. It defaults to `,`. If the given value is an array, this option isn't used.
+- `validator`: Sets the validator that will be executed on each exploded item.
+
+## Basic usage
+
+To validate if every item in an array is into a certain haystack:
+
+```php
+$inArrayValidator = new Zend\Validator\InArray([
+    'haystack' => [1, 2, 3, 4, 5, 6]
+]);
+
+$explodeValidator = new Zend\Validator\Explode([
+    'validator' => $inArrayValidator
+]);
+
+$explodeValidator->isValid([1, 4, 6]);    // returns true
+$explodeValidator->isValid([1, 4, 6, 8]); // returns false
+```
+
+## Exploding strings
+
+To validate if every e-mail in an string is into a certain name list:
+
+```php
+$inEmailListValidator = new Zend\Validator\InArray([
+    'haystack' => ['[email protected]', '[email protected]', '[email protected]']
+]);
+
+$explodeValidator = new Zend\Validator\Explode([
+    'validator' => $inEmailListValidator,
+    'valueDelimiter' => ','
+]);
+
+$explodeValidator->isValid('[email protected],[email protected]'); // returns true
+$explodeValidator->isValid('[email protected],[email protected]');  // returns false
+```

mkdocs.yml

@@ -17,6 +17,7 @@ pages:
             - "Db\\RecordExists and Db\\NoRecordExists": validators/db.md
             - Digits: validators/digits.md
             - EmailAddress: validators/email-address.md
+            - Explode: validators/explode.md
             - GreaterThan: validators/greater-than.md
             - Hex: validators/hex.md
             - Hostname: validators/hostname.md