在 WordPress 宽高比中自动使用调整大小的图像而不是原始图像？

发布于 2024-11-08 05:44:41 字数 1160 浏览 0 评论 0原文

我会感谢你的帮助。我在 WordPress 中使用了自定义字段并创建了表单来上传帖子中的图像。一切正常。我还放置了此代码来替换原始图像（如果有人发布了巨大的图像尺寸），它会自动调整其大小。事实上，它会调整图像大小，但不会保持宽高比，即最大 500 像素宽度，最大 800 像素高度。它需要该值并被裁剪为该尺寸。我希望高度成比例而不是裁剪！这转到functions.php

function replace_uploaded_image($image_data) {
// if there is no large image : return
if (!isset($image_data['sizes']['large'])) return $image_data;

// paths to the uploaded image and the large image
$upload_dir = wp_upload_dir();
$uploaded_image_location = $upload_dir['basedir'] . '/' .$image_data['file'];
$large_image_location = $upload_dir['path'] . '/'.$image_data['sizes']['large']  
['file'];

// delete the uploaded image
unlink($uploaded_image_location);

// rename the large image
rename($large_image_location,$uploaded_image_location);

// update image metadata and return them
$image_data['width'] = $image_data['sizes']['large']['width'];
$image_data['height'] = $image_data['sizes']['large']['height'];
unset($image_data['sizes']['large']);

return $image_data;
}
add_filter('wp_generate_attachment_metadata','replace_uploaded_image');

http://pastie.org/1928349

原文

I would appriciate Your help. I used custom field in Wordpress and created the form to upload the image in the post. Everything works fine. I also placed this code to replace the original image ( if someone posted huge image size ) which automatically resizes it. It in fact resizes the image but it doesn't keep the aspect ratio meaning max 500px width, max 800px height. It takes that walues and becomes croped to that size. I want the height to be proportional not croped! this goes to functions.php

function replace_uploaded_image($image_data) {
// if there is no large image : return
if (!isset($image_data['sizes']['large'])) return $image_data;

// paths to the uploaded image and the large image
$upload_dir = wp_upload_dir();
$uploaded_image_location = $upload_dir['basedir'] . '/' .$image_data['file'];
$large_image_location = $upload_dir['path'] . '/'.$image_data['sizes']['large']  
['file'];

// delete the uploaded image
unlink($uploaded_image_location);

// rename the large image
rename($large_image_location,$uploaded_image_location);

// update image metadata and return them
$image_data['width'] = $image_data['sizes']['large']['width'];
$image_data['height'] = $image_data['sizes']['large']['height'];
unset($image_data['sizes']['large']);

return $image_data;
}
add_filter('wp_generate_attachment_metadata','replace_uploaded_image');

http://pastie.org/1928349

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