PHP 클래스 Prado\TPropertyValue
TPropertyValue is a utility class that provides static methods
to convert component property values to specific types.
TPropertyValue is commonly used in component setter methods to ensure
the new property value is of specific type.
For example, a boolean-typed property setter method would be as follows,
function setPropertyName($value) {
$value=TPropertyValue::ensureBoolean($value);
$value is now of boolean type
}
Properties can be of the following types with specific type conversion rules:
- string: a boolean value will be converted to 'true' or 'false'.
- boolean: string 'true' (case-insensitive) will be converted to true,
string 'false' (case-insensitive) will be converted to false.
- integer
- float
- array: string starting with '(' and ending with ')' will be considered as
as an array expression and will be evaluated. Otherwise, an array
with the value to be ensured is returned.
- object
- enum: enumerable type, represented by an array of strings.
파일 보기
프로젝트 열기: pradosoft/prado
1 사용 예제들
공개 메소드들
메소드 |
설명 |
|
ensureArray ( $value ) : array |
Converts a value to array type. If the value is a string and it is
in the form (a,b,c) then an array consisting of each of the elements
will be returned. If the value is a string and it is not in this form
then an array consisting of just the string will be returned. If the value
is not a string then |
|
ensureBoolean ( $value ) : boolean |
Converts a value to boolean type. |
|
ensureEnum ( $value, $enums ) : string |
Converts a value to enum type. |
|
ensureFloat ( $value ) : float |
Converts a value to float type. |
|
ensureInteger ( $value ) : integer |
Converts a value to integer type. |
|
ensureNullIfEmpty ( $value ) : mixed |
Converts the value to 'null' if the given value is empty |
|
ensureObject ( $value ) : object |
Converts a value to object type. |
|
ensureString ( $value ) : string |
Converts a value to string type. |
|
메소드 상세
Converts a value to array type. If the value is a string and it is
in the form (a,b,c) then an array consisting of each of the elements
will be returned. If the value is a string and it is not in this form
then an array consisting of just the string will be returned. If the value
is not a string then
ensureBoolean()
공개 정적인 메소드
Note, string 'true' (case-insensitive) will be converted to true,
string 'false' (case-insensitive) will be converted to false.
If a string represents a non-zero number, it will be treated as true.
This method checks if the value is of the specified enumerable type.
A value is a valid enumerable value if it is equal to the name of a constant
in the specified enumerable type (class).
For more details about enumerable, see {@link TEnumerable}.
For backward compatibility, this method also supports sanity
check of a string value to see if it is among the given list of strings.
Converts a value to float type.
ensureInteger()
공개 정적인 메소드
Converts a value to integer type.
ensureNullIfEmpty()
공개 정적인 메소드
Converts the value to 'null' if the given value is empty
ensureObject()
공개 정적인 메소드
Converts a value to object type.
ensureString()
공개 정적인 메소드
Note, a boolean value will be converted to 'true' if it is true
and 'false' if it is false.