ReflectionParameter::isDefaultValueConstant

(PHP 5 >= 5.4.6, PHP 7, PHP 8)

ReflectionParameter::isDefaultValueConstantReturns whether the default value of this parameter is a constant

Description

public ReflectionParameter::isDefaultValueConstant(): bool

Returns whether the default value of this parameter is a constant.

Parameters

This function has no parameters.

Return Values

Returns true if the default value is constant, and false otherwise.

See Also

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User Contributed Notes 1 note

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kristianoye at gmail dot com
9 years ago
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.
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