ReflectionProperty 类

目录

• ReflectionProperty::__clone — Clone
• ReflectionProperty::__construct — Construct a ReflectionProperty object
• ReflectionProperty::export — Export
• ReflectionProperty::getAttributes — Gets Attributes
• ReflectionProperty::getDeclaringClass — Gets declaring class
• ReflectionProperty::getDefaultValue — Returns the default value declared for a property
• ReflectionProperty::getDocComment — Gets the property doc comment
• ReflectionProperty::getHook — Returns a reflection object for a specified hook
• ReflectionProperty::getHooks — Returns an array of all hooks on this property
• ReflectionProperty::getModifiers — Gets the property modifiers
• ReflectionProperty::getName — Gets property name
• ReflectionProperty::getRawValue — Returns the value of a property, bypassing a get hook if defined
• ReflectionProperty::getSettableType — Returns the parameter type of a setter hook
• ReflectionProperty::getType — Gets a property's type
• ReflectionProperty::getValue — Gets value
• ReflectionProperty::hasDefaultValue — Checks if property has a default value declared
• ReflectionProperty::hasHook — Returns whether the property has a given hook defined
• ReflectionProperty::hasHooks — Returns whether the property has any hooks defined
• ReflectionProperty::hasType — Checks if property has a type
• ReflectionProperty::isAbstract — Determines if a property is abstract
• ReflectionProperty::isDefault — Checks if property is a default property
• ReflectionProperty::isDynamic — Checks if property is a dynamic property
• ReflectionProperty::isFinal — Determines if this property is final or not
• ReflectionProperty::isInitialized — Checks whether a property is initialized
• ReflectionProperty::isLazy — Checks whether a property is lazy
• ReflectionProperty::isPrivate — Checks if property is private
• ReflectionProperty::isPrivateSet — Checks if property is private for writing
• ReflectionProperty::isPromoted — Checks if property is promoted
• ReflectionProperty::isProtected — Checks if property is protected
• ReflectionProperty::isProtectedSet — Checks whether the property is protected for writing
• ReflectionProperty::isPublic — Checks if property is public
• ReflectionProperty::isReadOnly — 检查属性是否为只读
• ReflectionProperty::isStatic — Checks if property is static
• ReflectionProperty::isVirtual — Determines if a property is virtual
• ReflectionProperty::setAccessible — Set property accessibility
• ReflectionProperty::setRawValue — Sets the value of a property, bypassing a set hook if defined
• ReflectionProperty::setRawValueWithoutLazyInitialization — Set raw property value without triggering lazy initialization
• ReflectionProperty::setValue — Set property value
• ReflectionProperty::skipLazyInitialization — Marks property as non-lazy
• ReflectionProperty::__toString — To string

I think a more accurate explanation is this:

The Reflection classes are designed to reflect upon the source code of an application, not on any runtime information.

I think you misunderstand the ReflectionProperty constructor in your example above. The fact that it accepts an object as argument is just a convenience feature - you are actually inspecting the class of that object, not the object itself, so it's basically equivalent to:

<?php

// works fine 
$Reflection = new ReflectionProperty(get_class($a), 'a');

// throws exception 
$Reflection = new ReflectionProperty(get_class($a), 'foo');

?>

Getting the class of the object you're passing in is implied, since inspecting a defined property is the purpose of this class.

In your example, $a->foo is a dynamic member - it is not defined as a member of class, so there is no defining class reference, line number, default value, etc. - which means, there is nothing to reflect upon.

Clearly this very useful library could use some real documentation...