function spl_autoload(string $class_name, string $file_extensions = NULL) {/**/};

function spl_autoload_call(string $class_name) {/**/};

function spl_autoload_extensions($file_extensions) {/**/};

function spl_autoload_functions() {/**/};

function spl_autoload_register(string $autoload_function = "spl_autoload", $throw = true) {/**/};

function spl_autoload_unregister(string $autoload_function = "spl_autoload") {/**/};

function spl_classes() {/**/};

function iterator_count(Traversable $it) {/**/};

function iterator_to_array(Traversable $it, $use_keys = true) {/**/};

class Exception

}

class LogicException extends Exception

{

}

class BadFunctionCallException extends LogicException

{

}

class BadMethodCallException extends BadFunctionCallException

{

}

class DomainException extends LogicException

{

}

class InvalidArgumentException extends LogicException

{

}

class LengthException extends LogicException

{

}

class OutOfRangeException extends LogicException

{

}

class RuntimeException extends Exception

{

}

class OutOfBoundsException extends RuntimeException

{

}

class OverflowException extends RuntimeException

{

}

class RangeException extends RuntimeException

{

}

class UnderflowException extends RuntimeException

{

}

class UnexpectedValueException extends RuntimeException

{

}

interface ArrayAccess

}

interface Traversable

{

}

interface IteratorAggregate extends Traversable

}

interface Iterator extends Traversable

}

interface Countable

}

interface Serializable

}

class ArrayObject implements IteratorAggregate, ArrayAccess, Countable

function uasort(mixed cmp_function) {/**/}

/** Sort the entries by key using user defined function.

function uksort(mixed cmp_function) {/**/}

/** Sort the entries by values using "natural order" algorithm.

function natsort() {/**/}

/** Sort the entries by values using case insensitive "natural order" algorithm.

function natcasesort() {/**/}

/** @param $array new array or object

function exchangeArray($array) {/**/}

/** @return the iterator which is an ArrayIterator object connected to

function getIterator() {/**/}

/** @param $index offset to inspect

function offsetExists($index) {/**/}

/** @param $index offset to return value for

function offsetGet($index) {/**/}

/** @param $index index to set

function offsetSet($index, $newval) {/**/}

/** @param $index offset to unset

function offsetUnset($index) {/**/}

/** @param $value is appended as last element

function append($value) {/**/}

/** @return a \b copy of the array

function getArrayCopy() {/**/}

/** @return the number of elements in the array or the number of public

function count() {/**/}

/* @param $iterator_class new class used in getIterator()

function setIteratorClass($itertor_class) {/**/}

/* @return class used in getIterator()

function getIteratorClass() {/**/}

}

class ArrayIterator implements SeekableIterator, ArrayAccess, Countable

function uasort(mixed cmp_function) {/**/}

/** Sort the entries by key using user defined function.

function uksort(mixed cmp_function) {/**/}

/** Sort the entries by values using "natural order" algorithm.

function natsort() {/**/}

/** Sort the entries by values using case insensitive "natural order" algorithm.

function natcasesort() {/**/}

/** @param $index offset to inspect

function offsetExists($index) {/**/}

/** @param $index offset to return value for

function offsetGet($index) {/**/}

/** @param $index index to set

function offsetSet($index, $newval) {/**/}

/** @param $index offset to unset

function offsetUnset($index) {/**/}

/** @param $value is appended as last element

function append($value) {/**/}

/** @return a \b copy of the array

function getArrayCopy() {/**/}

/** @param $position offset to seek to

function seek($position) {/**/}

/** @return the number of elements in the array or the number of public

function count() {/**/}

/** @copydoc Iterator::rewind */

function rewind() {/**/}

/** @copydoc Iterator::valid */

function valid() {/**/}

/** @copydoc Iterator::current */

function current() {/**/}

/** @copydoc Iterator::key */

function key() {/**/}

/** @copydoc Iterator::next */

function next() {/**/}

}

class SplFileInfo

function getFileInfo(string class_name = NULL) {/**/}

/** @return The current entries path and file name.

function getPathname() {/**/}

/** @return SplFileInfo created for the path

function getPathInfo(string class_name = NULL) {/**/}

/** @return The current entry's permissions.

function getPerms() {/**/}

/** @return The current entry's inode.

function getInode() {/**/}

/** @return The current entry's size in bytes .

function getSize() {/**/}

/** @return The current entry's owner name.

function getOwner() {/**/}

/** @return The current entry's group name.

function getGroup() {/**/}

/** @return The current entry's last access time.

function getATime() {/**/}

/** @return The current entry's last modification time.

function getMTime() {/**/}

/** @return The current entry's last change time.

function getCTime() {/**/}

/** @return The current entry's file type.

function getType() {/**/}

/** @return Whether the current entry is writeable.

function isWritable() {/**/}

/** @return Whether the current entry is readable.

function isReadable() {/**/}

/** @return Whether the current entry is executable.

function isExecutable() {/**/}

/** @return Whether the current entry is .

function isFile() {/**/}

/** @return Whether the current entry is a directory.

function isDir() {/**/}

/** @return whether the current entry is a link.

function isLink() {/**/}

/** @return target of link.

function getLinkTarget() {/**/}

/** @return The resolved path

function getRealPath() {/**/}

/** @return getPathname()

function __toString() {/**/}

/** Open the current file as a SplFileObject instance

function openFile($mode = 'r', $use_include_path = false, $context = NULL) {/**/}

/** @param class_name name of class used with openFile(). Must be derived

function setFileClass(string class_name = "SplFileObject") {/**/}

/** @param class_name name of class used with getFileInfo(), getPathInfo().

function setInfoClass(string class_name = "SplFileInfo") {/**/}

}

class DirectoryIterator extends SplFileInfo implements Iterator