The ReflectionClass::isUserDefined() function is an inbuilt function in PHP which is used to check if any user-defined class is available or not.
Syntax:
bool ReflectionClass::isUserDefined()
Parameters: This function does not accept any parameter.
Return Value: This function returns TRUE if the user-defined class is available, otherwise FALSE.
Below programs illustrate the ReflectionClass::isUserDefined() function in PHP:
Program 1:
php
<?php // Defining user-defined class Company Class Company { public function GeeksforGeeks() {
}
} // Using ReflectionClass over the // defined class $obj = new ReflectionClass( 'Company' );
// Calling the isUserDefined() function $A = $obj ->isUserDefined();
// Getting the value true or false var_dump( $A );
?> |
Output:
bool(true)
Program 2:
php
<?php // Using a internal class 'ReflectionClass' $obj = new ReflectionClass( 'ReflectionClass' );
// Calling the isUserDefined() function $A = $obj ->isUserDefined();
// Getting the value true or false var_dump( $A );
?> |
Output:
bool(false)
Reference: https://www.php.net/manual/en/reflectionclass.isuserdefined.php