Podręcznik PHP
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# CXLV. Standard PHP Library (SPL) Functions

# Wstęp

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

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

# Instalacja

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

# Stałe predefinopwane

Poniższe stałe są zdefiniowane w tym rozszerzeniu i stają się dostępne, gdy rozszerzenie jest dokompilowane do PHP, lub załadowane dynamicznie przy starcie.

Ostrzeżenie
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)

Spis treści
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_classes -- Return available SPL classes

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