PHPフレームワークの空判定バリデーションを比較

PHPフレームワークの空白判定バリデーション比較

Codeigniter2.1

/Form_validation.php

/**
 * Required
 *
 * @access  public
 * @param   string
 * @return  bool
 */
public function required($str)
{
    if ( ! is_array($str))
    {
        return (trim($str) == '') ? FALSE : TRUE;
    }
    else
    {
        return ( ! empty($str));
    }
}

value	required(value)
$undefined	false
null	false
true	true
false	false
''	false
0	true
'0'	true
array()	false

fuel1.6

validation.php

/**
 * Special empty method because 0 and '0' are non-empty values
 *
 * @param   mixed
 * @return  bool
 */
public static function _empty($val)
{
    return ($val === false or $val === null or $val === '' or $val === array());
}

value	!_empty(value)
$undefined	false
null	false
true	true
false	false
''	false
0	true
'0'	true
array()	false

Symfony1.4

sfValidatorBase.class.php

  /**
   * Returns true if the value is empty.
   *
   * @param  mixed $value  The input value
   *
   * @return bool true if the value is empty, false otherwise
   */
  protected function isEmpty($value)
  {
    return in_array($value, array(null, '', array()), true);
  }

value	!isEmpty(value)
$undefined	false
null	false
true	true
false	true
''	false
0	true
'0'	true
array()	false

Symfony2.3

NotBlankValidator.php

class NotBlankValidator extends ConstraintValidator
{
    /**
     * {@inheritDoc}
     */
    public function validate($value, Constraint $constraint)
    {
        if (false === $value || (empty($value) && '0' != $value)) {
            $this->context->addViolation($constraint->message);
        }
    }
}

value	validate(value)
$undefined	false
null	false
true	true
false	false
''	false
0	true
'0'	true
array()	false

BlankValidator.php

/**
 * @author Bernhard Schussek <[e-mail]>
 *
 * @api
 */
class BlankValidator extends ConstraintValidator
{
    /**
     * {@inheritDoc}
     */
    public function validate($value, Constraint $constraint)
    {
        if ('' !== $value && null !== $value) {
            $this->context->addViolation($constraint->message, array('{{ value }}' => $value));
        }
    }
}

value	!validate(value)
$undefined	false
null	false
true	true
false	true
''	false
0	true
'0'	true
array()	true

cake2.4

Validation.php

/**
 * Checks that a string contains something other than whitespace
 *
 * Returns true if string contains something other than whitespace
 *
 * $check can be passed as an array:
 * array('check' => 'valueToCheck');
 *
 * @param string|array $check Value to check
 * @return boolean Success
 */
public static function notEmpty($check) {
    if (is_array($check)) {
        extract(self::_defaults($check));
    }

    if (empty($check) && $check != '0') {
        return false;
    }
    return self::_check($check, '/[^\s]+/m');
}