1. Error: Call to undefined function common\models\exif_imagetype. This error indicates that PHP cannot find the exif_imagetype function. exif_imagetype is a function in PHP’s EXIF extension used to detect the type of an image file. If this extension is not installed or enabled, this error will occur.
2. The process of installing and enabling the PHP EXIF extension in LNMP 2.1. Reference: lnmp之安装PHP模块/扩展(不需要重装PHP)
3. Check extension_dir in phpinfo() to confirm the directory where the extension is located: /usr/local/php/lib/php/extensions/no-debug-non-zts-20190902. See Figure 1.
4. Enter the LNMP installation directory: By default, LNMP is installed in the /root/lnmp2.1 directory. Navigate to this directory and run the addons.sh script to install the exif extension using the following command: See Figure 2.
cd /root/lnmp2.1
./addons.sh install exif
5. Restart PHP-FPM: After the installation is complete, restart PHP-FPM to apply the changes:
[root@iZ2zeaj7tnbv8d3gsoy1w5Z lnmp2.1]# lnmp php-fpm restart
+-------------------------------------------+
| Manager for LNMP, Written by Licess |
+-------------------------------------------+
| https://lnmp.org |
+-------------------------------------------+
Gracefully shutting down php-fpm . done
Starting php-fpm done
[root@iZ2zeaj7tnbv8d3gsoy1w5Z lnmp2.1]#
6. Verify whether the extension is enabled: Check phpinfo(). Confirm that it has been installed and enabled. See Figure 3.
