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Only use exif extension if present #1259

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Merged
tbar0970 merged 1 commit into from
Sep 1, 2025
Merged

Only use exif extension if present #1259

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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ System requirements are:
* with [xmlwriter extension](https://www.php.net/manual/en/book.xmlwriter.php) enabled, to create DOCX files
* [GD library](https://www.php.net/manual/en/book.image.php) recommended, to manage the size of uploaded photos
* with [curl extension](https://www.php.net/manual/en/book.curl.php) enabled, if you intend to use the Mailchimp integration
* with [exif extension](https://www.php.net/manual/en/book.exif.php) enabled, if you would like to automatically rotate images

The steps to install are:
1. Unzip the files into a web-accessible folder on your web server
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28 changes: 15 additions & 13 deletions include/photo_handler.class.php
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Expand Up @@ -43,19 +43,21 @@ public static function getUploadedPhotoData($fieldName, $crop=NULL)
$fn = 'imagecreatefrom'.$ext;
$input_img = $fn($_FILES[$fieldName]['tmp_name']);
if (!$input_img) exit;
// Rotate the image as necessary - thanks https://www.php.net/manual/en/function.exif-read-data.php#110894
$exif = @exif_read_data($_FILES[$fieldName]['tmp_name']);
if (!empty($exif['Orientation'])) {
switch($exif['Orientation']) {
case 8:
$input_img = imagerotate($input_img,90,0);
break;
case 3:
$input_img = imagerotate($input_img,180,0);
break;
case 6:
$input_img = imagerotate($input_img,-90,0);
break;
if (function_exists('exif_read_data')) {
// Rotate the image as necessary - thanks https://www.php.net/manual/en/function.exif-read-data.php#110894
$exif = @exif_read_data($_FILES[$fieldName]['tmp_name']);
if (!empty($exif['Orientation'])) {
switch($exif['Orientation']) {
case 8:
$input_img = imagerotate($input_img,90,0);
break;
case 3:
$input_img = imagerotate($input_img,180,0);
break;
case 6:
$input_img = imagerotate($input_img,-90,0);
break;
}
}
}
$orig_width = imagesx($input_img);
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