How to use the array output file extension for php

This article mainly explains "how to use php array output file extension", interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's take you to learn "how to use array output file extension php"!

explode('. ',$filename) according to the delimiter ". "to split the $filename string and pass substrings into the array.

The last element of the array is the extension you want to get.

Use the built-in function array_pop($arr) to get the last element of the $arr array.

That is, the extension you need to obtain.

pathinfo($filename) returns information about file paths as an array.

The array elements returned by this function are:

[dirname]: directory path

[basename]: file name

[extension]: file suffix name

[filename]: filename without suffix

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