# Class Phalcon\\Validation\\Validator\\StringLength
# Class **Phalcon\\Validation\\Validator\\StringLength**
*extends* abstract class [*Phalcon\\Validation\\Validator*](#)
*implements*[*Phalcon\\Validation\\ValidatorInterface*](#)
Validates that a string has the specified maximum and minimum constraints The test is passed if for a string's length L, min<=L<=max, i.e. L must be at least min, and at most max.
```
<pre class="calibre14">```
<?php
use Phalcon\Validation\Validator\StringLength as StringLength;
$validation->add('name_last', new StringLength(array(
'max' => 50,
'min' => 2,
'messageMaximum' => 'We don\'t like really long names',
'messageMinimum' => 'We want more than just their initials'
)));
```
```
### Methods
public **validate** (*unknown* $validation, *unknown* $field)
Executes the validation
public **\_\_construct** (\[*unknown* $options\]) inherited from Phalcon\\Validation\\Validator
Phalcon\\Validation\\Validator constructor
public **isSetOption** (*unknown* $key) inherited from Phalcon\\Validation\\Validator
Checks if an option is defined
public **hasOption** (*unknown* $key) inherited from Phalcon\\Validation\\Validator
Checks if an option is defined
public **getOption** (*unknown* $key, \[*unknown* $defaultValue\]) inherited from Phalcon\\Validation\\Validator
Returns an option in the validator's options Returns null if the option hasn't set
public **setOption** (*unknown* $key, *unknown* $value) inherited from Phalcon\\Validation\\Validator
Sets an option in the validator
|
- [索引](# "总目录")
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- Class Phalcon\Validation\Validator\Alnum
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