Two ways to get the file name extension in PHP

This article describes, The PHP code used to get the file name extension, which gets the extension in PHP, is convenient to use the PathInfo () method. Refer to a friend who needs it. In PHP, it is easy to get the file extension from the end of the file. With PHP function PathInfo, you can do this by paying attention to the number of points in front of the file extension in use. The extension that is obtained by using pathinfo () is not included in the dot number. The following are two ways to get file name extensions, as follows. Method 1, Method Two, which is basically the same as method one, but uses a string operation to get the extension, using the. Number as the delimiter. Code:

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