spl 教程一 基础应用
spl 是什么
* SPL是Standard PHP Library（PHP标准库）的缩写。
* 根据官方定义，它是“a collection of interfaces and classes that are meant tosolve standard problems
* 目前在使用中，SPL更多地被看作是一种使object（物体）模仿array（数组）行为的interfaces和classes。
spl可以干什么用
/*** spl 作用* （1） 提供了一系列的标准的数据机构SplDoublyLinkedList — The SplDoublyLinkedList classSplStack — The SplStack classSplQueue — The SplQueue classSplHeap — The SplHeap classSplMaxHeap — The SplMaxHeap classSplMinHeap — The SplMinHeap classSplPriorityQueue — The SplPriorityQueue classSplFixedArray — The SplFixedArray classSplObjectStorage — The SplObjectStorage class* （2） 提供了一系列迭代器AppendIterator — The AppendIterator classArrayIterator — The ArrayIterator classCachingIterator — The CachingIterator classCallbackFilterIterator — The CallbackFilterIterator classDirectoryIterator — The DirectoryIterator classEmptyIterator — The EmptyIterator classFilesystemIterator — The FilesystemIterator classFilterIterator — The FilterIterator classGlobIterator — The GlobIterator classInfiniteIterator — The InfiniteIterator classIteratorIterator — The IteratorIterator classLimitIterator — The LimitIterator classMultipleIterator — The MultipleIterator classNoRewindIterator — The NoRewindIterator classParentIterator — The ParentIterator classRecursiveArrayIterator — The RecursiveArrayIterator classRecursiveCachingIterator — The RecursiveCachingIterator classRecursiveCallbackFilterIterator — The RecursiveCallbackFilterIterator classRecursiveDirectoryIterator — The RecursiveDirectoryIterator classRecursiveFilterIterator — The RecursiveFilterIterator classRecursiveIteratorIterator — The RecursiveIteratorIterator classRecursiveRegexIterator — The RecursiveRegexIterator classRecursiveTreeIterator — The RecursiveTreeIterator classRegexIterator — The RegexIterator class*** （3） 提供了一系列接口Countable — The Countable interfaceOuterIterator — The OuterIterator interfaceRecursiveIterator — The RecursiveIterator interfaceSeekableIterator — The SeekableIterator interface* （4） 提供了一系列标准异常BadFunctionCallException — The BadFunctionCallException classBadMethodCallException — The BadMethodCallException classDomainException — The DomainException classInvalidArgumentException — The InvalidArgumentException classLengthException — The LengthException classLogicException — The LogicException classOutOfBoundsException — The OutOfBoundsException classOutOfRangeException — The OutOfRangeException classOverflowException — The OverflowException classRangeException — The RangeException classRuntimeException — The RuntimeException classUnderflowException — The UnderflowException classUnexpectedValueException — The UnexpectedValueException class* (5) 一系列方法class_implements — Return the interfaces which are implemented by the given class or interfaceclass_parents — Return the parent classes of the given classclass_uses — Return the traits used by the given classiterator_apply — Call a function for every element in an iteratoriterator_count — Count the elements in an iteratoriterator_to_array — Copy the iterator into an arrayspl_autoload_call — Try all registered __autoload() function to load the requested classspl_autoload_extensions — Register and return default file extensions for spl_autoloadspl_autoload_functions — Return all registered __autoload() functionsspl_autoload_register — Register given function as __autoload() implementationspl_autoload_unregister — Unregister given function as __autoload() implementationspl_autoload — Default implementation for __autoload()spl_classes — Return available SPL classesspl_object_hash — Return hash id for given object***/
/*** spl 作用* （1） 提供了一系列的标准的数据机构SplDoublyLinkedList — The SplDoublyLinkedList classSplStack — The SplStack classSplQueue — The SplQueue classSplHeap — The SplHeap classSplMaxHeap — The SplMaxHeap classSplMinHeap — The SplMinHeap classSplPriorityQueue — The SplPriorityQueue classSplFixedArray — The SplFixedArray classSplObjectStorage — The SplObjectStorage class* （2） 提供了一系列迭代器AppendIterator — The AppendIterator classArrayIterator — The ArrayIterator classCachingIterator — The CachingIterator classCallbackFilterIterator — The CallbackFilterIterator classDirectoryIterator — The DirectoryIterator classEmptyIterator — The EmptyIterator classFilesystemIterator — The FilesystemIterator classFilterIterator — The FilterIterator classGlobIterator — The GlobIterator classInfiniteIterator — The InfiniteIterator classIteratorIterator — The IteratorIterator classLimitIterator — The LimitIterator classMultipleIterator — The MultipleIterator classNoRewindIterator — The NoRewindIterator classParentIterator — The ParentIterator classRecursiveArrayIterator — The RecursiveArrayIterator classRecursiveCachingIterator — The RecursiveCachingIterator classRecursiveCallbackFilterIterator — The RecursiveCallbackFilterIterator classRecursiveDirectoryIterator — The RecursiveDirectoryIterator classRecursiveFilterIterator — The RecursiveFilterIterator classRecursiveIteratorIterator — The RecursiveIteratorIterator classRecursiveRegexIterator — The RecursiveRegexIterator classRecursiveTreeIterator — The RecursiveTreeIterator classRegexIterator — The RegexIterator class*** （3） 提供了一系列接口Countable — The Countable interfaceOuterIterator — The OuterIterator interfaceRecursiveIterator — The RecursiveIterator interfaceSeekableIterator — The SeekableIterator interface* （4） 提供了一系列标准异常BadFunctionCallException — The BadFunctionCallException classBadMethodCallException — The BadMethodCallException classDomainException — The DomainException classInvalidArgumentException — The InvalidArgumentException classLengthException — The LengthException classLogicException — The LogicException classOutOfBoundsException — The OutOfBoundsException classOutOfRangeException — The OutOfRangeException classOverflowException — The OverflowException classRangeException — The RangeException classRuntimeException — The RuntimeException classUnderflowException — The UnderflowException classUnexpectedValueException — The UnexpectedValueException class* (5) 一系列方法class_implements — Return the interfaces which are implemented by the given class or interfaceclass_parents — Return the parent classes of the given classclass_uses — Return the traits used by the given classiterator_apply — Call a function for every element in an iteratoriterator_count — Count the elements in an iteratoriterator_to_array — Copy the iterator into an arrayspl_autoload_call — Try all registered __autoload() function to load the requested classspl_autoload_extensions — Register and return default file extensions for spl_autoloadspl_autoload_functions — Return all registered __autoload() functionsspl_autoload_register — Register given function as __autoload() implementationspl_autoload_unregister — Unregister given function as __autoload() implementationspl_autoload — Default implementation for __autoload()spl_classes — Return available SPL classesspl_object_hash — Return hash id for given object***/
spl 案例和应用
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