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<?php class UserDefinedClass{} class DynamicObject{} $ud_obj = new UserDefinedClass(); $do_obj = new DynamicObject(); $sc_obj = new stdClass(); $a_obj = (object)array(); echo "===[get_class()]===\n"; printf( "UserDefinedClass Object Class: %s\n", get_class($ud_obj)); printf( "DynamicObject Object Class: %s\n", get_class($do_obj)); printf( "StdClass Object Class: %s\n", get_class($sc_obj)); printf( "Array-derived Object Class: %s\n", get_class($a_obj)); echo "\n===[gettype()]===\n"; printf( "UserDefinedClass Object Type: %s\n", gettype($ud_obj)); printf( "DynamicObject Object Type: %s\n", gettype($do_obj)); printf( "StdClass Object Type: %s\n", gettype($sc_obj)); printf( "Array-derived Object Type: %s\n", gettype($a_obj)); echo "\n===[is_a(stdClass::class)]===\n"; printf( "UserDefinedClass Object Type: %s\n", is_a($ud_obj,stdClass::class)); printf( "DynamicObject Object Type: %s\n", is_a($do_obj,stdClass::class)); printf( "StdClass Object Type: %s\n", is_a($sc_obj,stdClass::class)); printf( "Array-derived Object Type: %s\n", is_a($a_obj,stdClass::class)); echo "\n===[instanceof stdClass]===\n"; printf( "UserDefinedClass Object Type: %s\n", $ud_obj instanceof stdClass); printf( "DynamicObject Object Type: %s\n", $do_obj instanceof stdClass); printf( "StdClass Object Type: %s\n", $sc_obj instanceof stdClass); printf( "Array-derived Object Type: %s\n", $a_obj instanceof stdClass); echo "\n===[is_a(DynamicObject::class)]===\n"; printf( "UserDefinedClass Object Type: %s\n", is_a($ud_obj,DynamicObject::class)); printf( "DynamicObject Object Type: %s\n", is_a($do_obj,DynamicObject::class)); printf( "DynamicObject Object Type: %s\n", is_a($sc_obj,DynamicObject::class)); printf( "Array-derived Object Type: %s\n", is_a($a_obj,DynamicObject::class)); echo "\n===[instanceof DynamicObject]===\n"; printf( "UserDefinedClass Object Type: %s\n", $ud_obj instanceof DynamicObject); printf( "DynamicObject Object Type: %s\n", $do_obj instanceof DynamicObject); printf( "DynamicObject Object Type: %s\n", $sc_obj instanceof DynamicObject); printf( "Array-derived Object Type: %s\n", $a_obj instanceof DynamicObject); echo "\n===[is_subclass_of(stdClass::class)]===\n"; printf( "UserDefinedClass Object Type: %s\n", is_subclass_of($ud_obj,stdClass::class)); printf( "DynamicObject Object Type: %s\n", is_subclass_of($do_obj,stdClass::class)); printf( "StdClass Object Type: %s\n", is_subclass_of($sc_obj,stdClass::class)); printf( "Array-derived Object Type: %s\n", is_subclass_of($a_obj,stdClass::class));

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