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PHP Reflection::getModifierNames() Method: Usage and Examples

PHP Reflection::getModifierNames() Method: Usage and Examples: Reflection::getModifierNames() translates a reflection modifier bitmask into readable names.

1 views Published Oct 17, 2026 Updated Oct 17, 2026 admin

ReflectionClass inspects the definition of a class, rather than running its constructor or calling its methods.

What Is Reflection::getModifierNames in PHP?


Reflection::getModifierNames() translates a reflection modifier bitmask into readable names.

Reflection::getModifierNames(int $modifiers)

Parameters:

  • $modifiers — Required. The modifiers argument used to configure this operation; its accepted values follow the declared PHP type.

Example 1: Understanding the Basic Behavior


<?php

$modifiers = ReflectionMethod::IS_PUBLIC | ReflectionMethod::IS_STATIC;
print_r(Reflection::getModifierNames($modifiers));

Output:

Array
(
    [0] => public
    [1] => static
)

Explanation: Reflection::getModifierNames() translates a reflection modifier bitmask into readable names.

Example 2: Testing Another Case


<?php

$modifiers = ReflectionMethod::IS_PROTECTED;
print_r(Reflection::getModifierNames($modifiers));

Output:

Array
(
    [0] => protected
)

Explanation: The returned names depend on the modifier bits; modifiers differ for classes, methods and properties.

Practical Example: Applying the Operation


<?php

$modifiers = ReflectionMethod::IS_PRIVATE | ReflectionMethod::IS_STATIC;
print_r(Reflection::getModifierNames($modifiers));

Output:

Array
(
    [0] => private
    [1] => static
)

Explanation: The returned metadata may be false, null, an array, or a Reflection object depending on the requested property.

Important Behavior and Edge Cases


  • The returned names depend on the modifier bits; modifiers differ for classes, methods and properties.
  • The returned metadata may be false, null, an array, or a Reflection object depending on the requested property.

Comparison With Related Approaches


ApproachWhen to Use It
Reflection::getModifierNamesReflection::getModifierNames() translates a reflection modifier bitmask into readable names.
ReflectionMethod::getModifiers()Direct method and property calls operate on objects; ReflectionClass inspects declarations and their attributes.

Common Beginner Mistakes


MistakeCorrect Approach
Treating metadata returned by Reflection::getModifierNames() as though it executes the reflected class member.The returned names depend on the modifier bits; modifiers differ for classes, methods and properties.
Choosing ReflectionMethod::getModifiers() without checking whether it provides the same result.Direct method and property calls operate on objects; ReflectionClass inspects declarations and their attributes.

Key Takeaways


  • Reflection::getModifierNames() translates a reflection modifier bitmask into readable names.
  • The returned names depend on the modifier bits; modifiers differ for classes, methods and properties.
  • The returned metadata may be false, null, an array, or a Reflection object depending on the requested property.

The examples demonstrate where Reflection::getModifierNames fits within reflection and metadata. Verify the relevant preconditions whenever you adapt the code to real data.

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