ReflectionClass::getStaticPropertyValue
ReflectionClass::hasMethod
ReflectionClass
PHP Manual

# ReflectionClass::hasConstant

(PHP 5 >= 5.1.0)

ReflectionClass::hasConstant — Checks if constant is defined

### Descrição

public bool ReflectionClass::hasConstant ( string `$name` )

Checks whether the class has a specific constant defined or not.

### Parâmetros

`name`

  The name of the constant being checked for.

### Valor Retornado

`TRUE` if the constant is defined, otherwise `FALSE`.

### Exemplos

Exemplo #1 ReflectionClass::hasConstant example

`<?php
class Foo {
const c1 = 1;
}
$class = new ReflectionClass("Foo");
var_dump($class->hasConstant("c1"));
var_dump($class->hasConstant("c2"));
?>`

O exemplo acima irá imprimir algo similar a:

    bool(true)
    bool(false)

### Veja Também

- ReflectionClass::hasMethod - Checks if method is defined
- ReflectionClass::hasProperty - Checks if property is defined

ReflectionClass::getStaticPropertyValue
ReflectionClass::hasMethod
ReflectionClass
PHP Manual