What does php spl mean?

php The full English name of spl is Standard PHP Library, which refers to the standard PHP class library; its content mainly includes data structure classes, iterators, exception classes, SPL functions, and also provides a series of interfaces.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

What does php spl mean?

SPL is the PHP standard library.

spl, refers to SPL - Standard PHP Library standard PHP library.

The content mainly includes data structure classes, iterators, exception classes, SPL functions, and some interfaces.

The data structure class mainly includes basic data structures such as stack, queue, heap, array, etc. PHP has encapsulated them for you. If you want to do data processing, you can use them directly, which is very convenient.
Iterator is a new feature of PHP. It is very flexible to use in oop. For example, it can be used to traverse object arrays.

The exception class mainly encapsulates some common exceptions and makes it into an interface. Generally speaking, it has a template format, and you can expand it according to its requirements.

There is a very important thing in the SPL function, spl_autoload_register(), which is used to implement automatic loading in oop.

Other interfaces, such as SplObserver, it is very convenient to use the built-in interface of PHP to implement the observer mode.

Standard PHP Library (PHP standard library, a framework that comes with PHP5 after compilation) provides a series of interfaces and classes to solve some common problems in Web development. .

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