How to Rename and Change Extension of Uploaded Image in PHP

Question

Can you please let me know how I can rename and change extension an image file on loading to the server?

What I would to do is changing selected image extension to .jpg (from .png or .JPEG) and hard code the name like new-image-1

for now what I have is this which exactly upload the image file as original name and extension.

$sourcePath = $_FILES['file']['tmp_name']; 
$targetPath = "../uploads/".$_FILES['file']['name']; 
move_uploaded_file($sourcePath,$targetPath) ;

Possible duplicate of [How can I change a file's extension using PHP?](http://stackoverflow.com/questions/193794/how-can-i-change-a-files-extension-using-php) — manniL, Mar 14 '16 at 17:59
if you don't want to use the original filename, then why are you telling php to use it with `$targetPath = ...`? "I put my groceries on the counter. why are there groceries on the counter? I wanted to put them on the floor". — Marc B, Mar 14 '16 at 18:01
Marc B, thanks for reply so how can I get access to original file then? — Behseini, Mar 14 '16 at 18:02
You can't change the file extension from .jpg to .png and expect it open properly without using an image processor to convert it. Can you use ImageMagick in your environment? http://php.net/manual/en/book.imagick.php — SacWebDeveloper, Mar 14 '16 at 18:03

ameenulla0007 · Answer 1 · 2016-03-14T18:18:09.343

0

$getName = $_FILES['file']['name'];
$explodeName = explode(".", $getName); //splits by .(dot)
$extention = strtowlower(end($explodeName)); //gets last splited value and returns extention

use of explode and end can achieve your requirement

know more about explode and end

in remark with change image extention to .jpg

if (preg_match('/jpg|jpeg/i',$extention))
        $imageTmp=imagecreatefromjpeg($tempImagePath);
    else if (preg_match('/png/i',$extention))
        $imageTmp=imagecreatefrompng($tempImagePath);
    else if (preg_match('/gif/i',$extention))
        $imageTmp=imagecreatefromgif($tempImagePath);
    else if (preg_match('/bmp/i',$extention))
        $imageTmp=imagecreatefrombmp($tempImagePath);

you can use the above code convert any image to jpg, and directly give a random new name concatenate with .jpg

edited Mar 14 '16 at 18:18

answered Mar 14 '16 at 18:04

ameenulla0007

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Thanks but here I am just getting the file extension! so how can I change it? – Behseini Mar 14 '16 at 18:08
change to what extention? – ameenulla0007 Mar 14 '16 at 18:09
huh! check my edited answer @Behseini, i saw your question, missed that extention thing, but you didn't try answering me, instead asked to read the post. great!! – ameenulla0007 Mar 14 '16 at 18:21

score 0 · Answer 2 · answered Mar 14 '16 at 18:05

Detemine what file type it is by examining the extension.

open the file from the source location with the Image GD library functions:

http://php.net/manual/en/ref.image.php

$img = imagecreatefrompng($source);

then save the image:

imagejpeg($img, $target.'.jpg');

How to Rename and Change Extension of Uploaded Image in PHP

2 Answers2