/**
* Validate that an attribute is an array.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
protected function validateArray($attribute, $value)
{// function name is validate the array
if (! $this->hasAttribute($attribute)) {
return true;
}// if it doesn't has this attribute
return is_null($value) || is_array($value);// is_null and is_array
}// validate that an attribute is an array
/**
* Validate that an attribute is a boolean.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
protected function validateBoolean($attribute, $value)
{
if (! $this->hasAttribute($attribute)) {
return true;
}// has attribute
$acceptable = [true, false, 0, 1, '0', '1'];// can be acceptable options
return is_null($value) || in_array($value, $acceptable, true);// is_null and it is array
}
/**
* Validate that an attribute is an integer.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
protected function validateInteger($attribute, $value)
{
if (! $this->hasAttribute($attribute)) {
return true;
}//ditto
return is_null($value) || filter_var($value, FILTER_VALIDATE_INT) !== false;
}// has a key like this
/**
* Validate that an attribute is numeric.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
protected function validateNumeric($attribute, $value)
{
if (! $this->hasAttribute($attribute)) {
return true;
}//just a number not only a int or float
return is_null($value) || is_numeric($value);
}// validate Numeric
/**
* Validate that an attribute is a string.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
protected function validateString($attribute, $value)
{
if (! $this->hasAttribute($attribute)) {
return true;
}// determine this attribute
return is_null($value) || is_string($value);
}// back value
/**
* Validate the attribute is a valid JSON string.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
protected function validateJson($attribute, $value)
{
if (! is_scalar($value) && ! method_exists($value, '__toString')) {
return false;
}// scalar means it is a stander value ,just like integer float string boolean
// other like array object resource
// if this value is not a scalar and it is can't be change to string
json_decode($value);// use this user function to change it.
return json_last_error() === JSON_ERROR_NONE;// then return this result
}
/**
* Validate that an attribute has a given number of digits.
*
* @param string $attribute
* @param mixed $value
* @param array $parameters
* @return bool
*/
protected function validateDigits($attribute, $value, $parameters)
{
$this->requireParameterCount(1, $parameters, 'digits');// i hate this user method
return $this->validateNumeric($attribute, $value)
&& strlen((string) $value) == $parameters[0];// just validate the attribute and this value
}//Validate that an attribute has a given number of digits.
/**
* Validate that an attribute is between a given number of digits.
*
* @param string $attribute
* @param mixed $value
* @param array $parameters
* @return bool
*/
protected function validateDigitsBetween($attribute, $value, $parameters)
{
$this->requireParameterCount(2, $parameters, 'digits_between');
// this function has three parameter Count
$length = strlen((string) $value);// get string length
return $this->validateNumeric($attribute, $value)
&& $length >= $parameters[0] && $length <= $parameters[1];// a log
}// Validate that an attribute is between a given number of digits
/**
* Validate the size of an attribute.
*
* @param string $attribute
* @param mixed $value
* @param array $parameters
* @return bool
*/
protected function validateSize($attribute, $value, $parameters)
{
$this->requireParameterCount(1, $parameters, 'size');
return $this->getSize($attribute, $value) == $parameters[0];
}//validate the size of an attribute.
/**
* Validate the size of an attribute is between a set of values.
*
* @param string $attribute
* @param mixed $value
* @param array $parameters
* @return bool
*/
protected function validateBetween($attribute, $value, $parameters)
{
$this->requireParameterCount(2, $parameters, 'between');
$size = $this->getSize($attribute, $value);//get size
return $size >= $parameters[0] && $size <= $parameters[1];// just return this judge result
}// validate Between
/**
* Validate the size of an attribute is greater than a minimum value.
*
* @param string $attribute
* @param mixed $value
* @param array $parameters
* @return bool
*/
protected function validateMin($attribute, $value, $parameters)
{
$this->requireParameterCount(1, $parameters, 'min');// get this Parameter Count
return $this->getSize($attribute, $value) >= $parameters[0];//get Size
}// validate the size of an attribute is greater than a minimum value.
/**
* Validate the size of an attribute is less than a maximum value.
*
* @param string $attribute
* @param mixed $value
* @param array $parameters
* @return bool
*/
protected function validateMax($attribute, $value, $parameters)
{
$this->requireParameterCount(1, $parameters, 'max');
if ($value instanceof UploadedFile && ! $value->isValid()) {
return false;
}
return $this->getSize($attribute, $value) <= $parameters[0];
}//validate the size of an attribute is less than a maximum value.
/**
* Get the size of an attribute.
*
* @param string $attribute
* @param mixed $value
* @return mixed
*/
protected function getSize($attribute, $value)
{
$hasNumeric = $this->hasRule($attribute, $this->numericRules);// has Numeric
// This method will determine if the attribute is a number, string, or file and
// return the proper size accordingly. If it is a number, then number itself
// is the size. If it is a file, we take kilobytes, and for a string the
// entire length of the string will be considered the attribute size.
if (is_numeric($value) && $hasNumeric) {
return $value;// numeric just return it is self
} elseif (is_array($value)) {
return count($value);// get count
} elseif ($value instanceof File) {
return $value->getSize() / 1024;// get Size
}
return mb_strlen($value);// if it is mb_strlen
}
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