What is exif php extension?

I'm using exif data to carry captions for my images.

Using exif_read_data on localhost worked fine (with Apache on Ubuntu), but Heroku reports:

PHP Fatal error: Call to undefined function exif_read_data() in /app/path/to/files.

I'm not really sure what to do here, looking at the error message it would appear that EXIF functions are not installed/enabled on my Heroku app.

Can it be added or enabled?

Potherca

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asked Apr 25, 2013 at 20:52

exif extension is not enabled in your heroku environment.

You need support for exif in order to use its functions. In php.ini you will find these two lines are the ones that do it:

extension=php_mbstring.dll
extension=php_exif.dll

And of course the dlls should be available in the correct folder - For linux instead of .dll they would be .so. I am not sure how it works in heroku. Maybe you can get their tech support to check these?

answered Apr 25, 2013 at 20:57

raidenaceraidenace

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I moved my website to a vps and I used exif function but look like in this new server exif not installed or enabled.. I tied many ways to enable it but no success:

Information:

Linux, Apache, Centos7

First, I run php -m but there is no exif in list.

options.conf

php1_release=7.2
php1_mode=mod_php

configure.php72

--enable-mbstring \
--enable-exif

php.ini

extension=php_mbstring.dll
extension=php_exif.dll   

But still I got:

PHP Fatal error: Uncaught Error: Call to undefined function exif_read_data() in...

Any idea?

asked Mar 19, 2019 at 6:12

1

If php.ini contents is like this:

1   extension=php_mbstring.dll
2   extension=php_exif.dll

make sure in your PHP installation ext directory php_exif.dll is present.

If it's not there, get it from here.

answered Mar 19, 2019 at 8:02

OvermindOvermind

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I'm using PHP 8 here.

Edit your php.ini which is probably in /etc/php

Page down to "Dynamic Extensions"

Uncomment this line...

extension=exif

Save.

Exif is included, so there's nothing to install.

Restart php-fpm for the changes to take effect.

answered Feb 26 at 9:44

PJ BrunetPJ Brunet

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