ReflectionClass::getTraitsReflectionClass::hasConstant
(PHP 5 >= 5.1.0)
ReflectionClass::hasConstant — Checks if constant is defined
说明
public bool ReflectionClass::hasConstant
( string
$name
)Checks whether the class has a specific constant defined or not.
参数
-
name -
The name of the constant being checked for.
返回值
TRUE if the constant is defined, otherwise FALSE.
范例
Example #1 ReflectionClass::hasConstant() example
<?php
class Foo {
const c1 = 1;
}
$class = new ReflectionClass("Foo");
var_dump($class->hasConstant("c1"));
var_dump($class->hasConstant("c2"));
?>
以上例程的输出类似于：
bool(true) bool(false)
参见
- ReflectionClass::hasMethod() - Checks if method is defined
- ReflectionClass::hasProperty() - Checks if property is defined
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ReflectionClass::hasConstant
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