The ReflectionExtension::getClasses() function is an inbuilt function in PHP which is used to return a list of classes from specified extension. If no classes are specified, an empty array is returned.
Syntax:
array ReflectionExtension::getClasses( void )
Parameters: This function does not accept any parameter.
Return Value: This function returns a list of classes from specified extension.
Below programs illustrate the ReflectionExtension::getClasses() function in PHP:
Program_1:
<?php   // Defining an extension $A = 'DOM';   // Using ReflectionExtension() over the // specified extension $extension = new ReflectionExtension($A);   // Calling the getClasses() function $B = $extension->getClasses();   // Getting the list of classes var_dump($B); ?> |
Output:
array(31) {
["DOMException"]=>
object(ReflectionClass)#2 (1) {
["name"]=>
string(12) "DOMException"
}
["DOMStringList"]=>
object(ReflectionClass)#3 (1) {
["name"]=>
string(13) "DOMStringList"
}
["DOMNameList"]=>
object(ReflectionClass)#4 (1) {
["name"]=>
string(11) "DOMNameList"
}
["DOMImplementationList"]=>
object(ReflectionClass)#5 (1) {
["name"]=>
string(21) "DOMImplementationList"
}
["DOMImplementationSource"]=>
object(ReflectionClass)#6 (1) {
["name"]=>
string(23) "DOMImplementationSource"
}
["DOMImplementation"]=>
object(ReflectionClass)#7 (1) {
["name"]=>
string(17) "DOMImplementation"
}
["DOMNode"]=>
object(ReflectionClass)#8 (1) {
["name"]=>
string(7) "DOMNode"
}
["DOMNameSpaceNode"]=>
object(ReflectionClass)#9 (1) {
["name"]=>
string(16) "DOMNameSpaceNode"
}
["DOMDocumentFragment"]=>
object(ReflectionClass)#10 (1) {
["name"]=>
string(19) "DOMDocumentFragment"
}
["DOMDocument"]=>
object(ReflectionClass)#11 (1) {
["name"]=>
string(11) "DOMDocument"
}
["DOMNodeList"]=>
object(ReflectionClass)#12 (1) {
["name"]=>
string(11) "DOMNodeList"
}
["DOMNamedNodeMap"]=>
object(ReflectionClass)#13 (1) {
["name"]=>
string(15) "DOMNamedNodeMap"
}
["DOMCharacterData"]=>
object(ReflectionClass)#14 (1) {
["name"]=>
string(16) "DOMCharacterData"
}
["DOMAttr"]=>
object(ReflectionClass)#15 (1) {
["name"]=>
string(7) "DOMAttr"
}
["DOMElement"]=>
object(ReflectionClass)#16 (1) {
["name"]=>
string(10) "DOMElement"
}
["DOMText"]=>
object(ReflectionClass)#17 (1) {
["name"]=>
string(7) "DOMText"
}
["DOMComment"]=>
object(ReflectionClass)#18 (1) {
["name"]=>
string(10) "DOMComment"
}
["DOMTypeinfo"]=>
object(ReflectionClass)#19 (1) {
["name"]=>
string(11) "DOMTypeinfo"
}
["DOMUserDataHandler"]=>
object(ReflectionClass)#20 (1) {
["name"]=>
string(18) "DOMUserDataHandler"
}
["DOMDomError"]=>
object(ReflectionClass)#21 (1) {
["name"]=>
string(11) "DOMDomError"
}
["DOMErrorHandler"]=>
object(ReflectionClass)#22 (1) {
["name"]=>
string(15) "DOMErrorHandler"
}
["DOMLocator"]=>
object(ReflectionClass)#23 (1) {
["name"]=>
string(10) "DOMLocator"
}
["DOMConfiguration"]=>
object(ReflectionClass)#24 (1) {
["name"]=>
string(16) "DOMConfiguration"
}
["DOMCdataSection"]=>
object(ReflectionClass)#25 (1) {
["name"]=>
string(15) "DOMCdataSection"
}
["DOMDocumentType"]=>
object(ReflectionClass)#26 (1) {
["name"]=>
string(15) "DOMDocumentType"
}
["DOMNotation"]=>
object(ReflectionClass)#27 (1) {
["name"]=>
string(11) "DOMNotation"
}
["DOMEntity"]=>
object(ReflectionClass)#28 (1) {
["name"]=>
string(9) "DOMEntity"
}
["DOMEntityReference"]=>
object(ReflectionClass)#29 (1) {
["name"]=>
string(18) "DOMEntityReference"
}
["DOMProcessingInstruction"]=>
object(ReflectionClass)#30 (1) {
["name"]=>
string(24) "DOMProcessingInstruction"
}
["DOMStringExtend"]=>
object(ReflectionClass)#31 (1) {
["name"]=>
string(15) "DOMStringExtend"
}
["DOMXPath"]=>
object(ReflectionClass)#32 (1) {
["name"]=>
string(8) "DOMXPath"
}
}
Program_2:
<?php   // Using ReflectionExtension() over // a extension xml $extension = new ReflectionExtension('xml');   // Calling the getClasses() function and // Getting the list of classes var_dump($extension->getClasses()); ?> |
Output:
array(0) {
}
Reference: https://www.php.net/manual/en/reflectionextension.getclasses.php
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