简介

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

安装

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

预定义常量

以下常量由本扩展模块定义，因此只有在本扩展模块被编译到 PHP 中，或者在运行时被动态加载后才有效。

目录

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