This method returns true only if the parameter's default value is set to a named constant. e.g.
class Foo {
const OPTION_MULTIGET = 1;
//Method 1
public function setGetOptions($opts=0);
//Method 2
public function setMultiGetOptions($opts=Foo::OPTION_MULTIGET);
}
Method 1's first ReflectionParameter will return isDefaultValueConstant() = false (0 is a "constant"/static value but not a named constant) and Method 2's will return isDefaultValueConsntant() = true.
ReflectionParameter::isDefaultValueConstant
(PHP 5 >= 5.4.6)
ReflectionParameter::isDefaultValueConstant — Returns whether the default value of this parameter is constant
說明
public bool ReflectionParameter::isDefaultValueConstant
( void
)
Warning
此函式目前沒有參考文件；只有引數列表。
參數
此函式沒有參數。
回傳值
Returns TRUE if the default value is constant, FALSE if it is not or
NULL on failure.
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User Contributed Notes 1 note
kristianoye at gmail dot com ¶
8 years ago
