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# CLV. Standard PHP Library (SPL) Functions

# Einführung

SPL is a collection of interfaces and classes that are meant to solve standard problems.

> Tipp: A more detailed documentation of SPL can be found here.

# Installation

This extension is available and compiled by default in PHP 5.

# Vordefinierte Konstanten

Folgende Konstanten werden von dieser Erweiterung definiert und stehen nur zur Verfügung, wenn die Erweiterung entweder statisch in PHP kompiliert oder dynamisch zur Laufzeit geladen wurde.

Warnung
SPL uses class constants since PHP 5.1. Prior releases use global constants in the form `RIT_LEAVES_ONLY`.

`RecursiveIteratorIterator::LEAVES_ONLY` (integer)

`RecursiveIteratorIterator::SELF_FIRST` (integer)

`RecursiveIteratorIterator::CHILD_FIRST` (integer)

`CachingIterator::CALL_TOSTRING` (integer)

`CachingIterator::CATCH_GET_CHILD` (integer)

Inhaltsverzeichnis
ArrayIterator::current -- Return current array entry
ArrayIterator::key -- Return current array key
ArrayIterator::next -- Move to next entry
ArrayIterator::rewind -- Rewind array back to the start
ArrayIterator::seek -- Seek to position
ArrayIterator::valid -- Check whether array contains more entries
ArrayObject::append -- Appends the value
ArrayObject::__construct -- Construct a new array object
ArrayObject::count -- Return the number of elements in the Iterator
ArrayObject::getIterator -- Create a new iterator from an ArrayObject instance
ArrayObject::offsetExists -- Returns whether the requested $index exists
ArrayObject::offsetGet -- Returns the value at the specified $index
ArrayObject::offsetSet -- Sets the value at the specified $index to $newval
ArrayObject::offsetUnset -- Unsets the value at the specified $index
CachingIterator::hasNext -- Check whether the inner iterator has a valid next element
CachingIterator::next -- Move the iterator forward
CachingIterator::rewind -- Rewind the iterator
CachingIterator::__toString -- Return the string representation of the current element
CachingIterator::valid -- Check whether the current element is valid
CachingRecursiveIterator::getChildren -- Return the inner iterator's children as a CachingRecursiveIterator
CachingRecursiveIterator::hasChildren -- Check whether the current element of the inner iterator has children
DirectoryIterator::__construct -- Constructs a new dir iterator from a path
DirectoryIterator::current -- Return this (needed for Iterator interface)
DirectoryIterator::getATime -- Get last access time of file
DirectoryIterator::getCTime -- Get inode modification time of file
DirectoryIterator::getChildren -- Returns an iterator for the current entry if it is a directory
DirectoryIterator::getFilename -- Return filename of current dir entry
DirectoryIterator::getGroup -- Get file group
DirectoryIterator::getInode -- Get file inode
DirectoryIterator::getMTime -- Get last modification time of file
DirectoryIterator::getOwner -- Get file owner
DirectoryIterator::getPath -- Return directory path
DirectoryIterator::getPathname -- Return path and filename of current dir entry
DirectoryIterator::getPerms -- Get file permissions
DirectoryIterator::getSize -- Get file size
DirectoryIterator::getType -- Get file type
DirectoryIterator::isDir -- Returns true if file is directory
DirectoryIterator::isDot -- Returns true if current entry is '.' or '..'
DirectoryIterator::isExecutable -- Returns true if file is executable
DirectoryIterator::isFile -- Returns true if file is a regular file
DirectoryIterator::isLink -- Returns true if file is symbolic link
DirectoryIterator::isReadable -- Returns true if file can be read
DirectoryIterator::isWritable -- Returns true if file can be written
DirectoryIterator::key -- Return current dir entry
DirectoryIterator::next -- Move to next entry
DirectoryIterator::rewind -- Rewind dir back to the start
DirectoryIterator::valid -- Check whether dir contains more entries
FilterIterator::current -- Get the current element value
FilterIterator::getInnerIterator -- Get the inner iterator
FilterIterator::key -- Get the current key
FilterIterator::next -- Move the iterator forward
FilterIterator::rewind -- Rewind the iterator
FilterIterator::valid -- Check whether the current element is valid
LimitIterator::getPosition -- Return the current position
LimitIterator::next -- Move the iterator forward
LimitIterator::rewind -- Rewind the iterator to the specified starting offset
LimitIterator::seek -- Seek to the given position
LimitIterator::valid -- Check whether the current element is valid
ParentIterator::getChildren -- Return the inner iterator's children contained in a ParentIterator
ParentIterator::hasChildren -- Check whether the inner iterator's current element has children
ParentIterator::next -- Move the iterator forward
ParentIterator::rewind -- Rewind the iterator
RecursiveDirectoryIterator::getChildren -- Returns an iterator for the current entry if it is a directory
RecursiveDirectoryIterator::hasChildren -- Returns whether current entry is a directory and not '.' or '..'
RecursiveDirectoryIterator::key -- Return path and filename of current dir entry
RecursiveDirectoryIterator::next -- Move to next entry
RecursiveDirectoryIterator::rewind -- Rewind dir back to the start
RecursiveIteratorIterator::current -- Access the current element value
RecursiveIteratorIterator::getDepth -- Get the current depth of the recursive iteration
RecursiveIteratorIterator::getSubIterator -- The current active sub iterator
RecursiveIteratorIterator::key -- Access the current key
RecursiveIteratorIterator::next -- Move forward to the next element
RecursiveIteratorIterator::rewind -- Rewind the iterator to the first element of the top level inner iterator
RecursiveIteratorIterator::valid -- Check whether the current position is valid
SimpleXMLIterator::current -- Return current SimpleXML entry
SimpleXMLIterator::getChildren -- Returns an iterator for the current entry if it is a SimpleXML object
SimpleXMLIterator::hasChildren -- Returns whether current entry is a SimpleXML object
SimpleXMLIterator::key -- Return current SimpleXML key
SimpleXMLIterator::next -- Move to next entry
SimpleXMLIterator::rewind -- Rewind SimpleXML back to the start
SimpleXMLIterator::valid -- Check whether SimpleXML contains more entries
class_implements -- Return the interfaces which are implemented by the given class
class_parents -- Return the parent classes of the given class
iterator_count -- Count the elements in an iterator
iterator_to_array -- Copy the iterator into an array
spl_autoload_call -- Try all registered __autoload() function to load the requested class
spl_autoload_extensions -- Register and return default file extensions for spl_autoload
spl_autoload_functions -- Return all registered __autoload() functions
spl_autoload_register -- Register given function as __autoload() implementation
spl_autoload_unregister -- Unregister given function as __autoload() implementation
spl_autoload -- Default implementation for __autoload()
spl_classes -- Return available SPL classes
spl_object_hash -- Return hash id for given object

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