ReflectionClass::hasConstant
(PHP 5 >= 5.1.2, PHP 7, PHP 8)
ReflectionClass::hasConstant — Checks if constant is defined
Description
public ReflectionClass::hasConstant(string
$name): boolChecks whether the class has a specific constant defined or not.
Parameters
-
name -
The name of the constant being checked for.
Return Values
true if the constant is defined, otherwise false.
Examples
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"));
?>
The above example will output something similar to:
bool(true) bool(false)
See Also
- ReflectionClass::hasMethod() - Checks if method is defined
- ReflectionClass::hasProperty() - Checks if property is defined
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