How to get the file extension in PHP

Question

I wish to get the file extension of an image I am uploading  but I just get an array back     userfile name     FILES  image    name     userfile extn   explode      strtolower   FILES  image    name        Is there a way to just get the extension itself

User · Answer

How about    ext   array pop  userfile extn

User · Answer

No need to use string functions  You can use something that s actually designed for what you want  pathinfo      path     FILES  image    name     ext   pathinfo  path  PATHINFO EXTENSION

User · Answer

This will work as well    array   explode        FILES  image    name      extension   end  array

User · Answer

A better method is using strrpos   substr  faster than explode for that      userfile name     FILES  image    name     userfile extn   substr  userfile name  strrpos  userfile name       1     But  to check the type of a file  using mime content type is a better way   http   www php net manual en function mime-content-type php

User · Answer

You could try with this for mime type   image   getimagesize   FILES  image    tmp name        image  mime   will return the mime type   This function doesn t require GD library  You can find the documentation here   This returns the mime type of the image   Some people use the   FILES  file    type   but it s not reliable as been given by the browser and not by PHP   You can use pathinfo   as ThiefMaster suggested to retrieve the image extension   First make sure that the image is being uploaded successfully while in development before performing any operations with the image

[php] How to get the file extension in PHP?

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