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Wordpress filter: image_downsize
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<?php | |
/** | |
* Default: | |
*/ | |
$post_thumbnail_id = get_post_thumbnail_id(get_the_ID()); | |
$width = 640; | |
$height = 480; | |
$image_obj = wp_get_attachment_image_src($post_thumbnail_id, array($width, $height)); | |
printf('<img src="%s" width="%u" height="%u">', $image_obj[0], $image_obj[1], $image_obj[2]); | |
/** | |
* Other options: | |
*/ | |
$post_thumbnail_id = get_post_thumbnail_id(get_the_ID()); | |
$width = 640; | |
$height = 480; | |
$crop = true; // See WP_Image_Editor reference for cropping options. | |
$quality = 85; | |
$image_obj = wp_get_attachment_image_src($post_thumbnail_id, array($width, $height, $crop, $quality)); | |
printf('<img src="%s" width="%u" height="%u">', $image_obj[0], $image_obj[1], $image_obj[2]); |
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<?php | |
add_filter('image_downsize', function ($false, $attachment_id, $size) | |
{ | |
if (!wp_attachment_is_image($attachment_id)) | |
return FALSE; | |
//--------------------------------------------------- | |
$upload_dir = wp_upload_dir(); | |
$size_string = is_array($size)? "{$size[0]}x{$size[1]}" : $size; | |
$img_metadata = wp_get_attachment_metadata($attachment_id); | |
// If indicated size not exist: | |
if (!isset($img_metadata['sizes'][$size_string])) | |
{ | |
// If $size is an Array, it will be used to create the new image. | |
if (is_array($size)) | |
{ | |
$img_full_path = "{$upload_dir['basedir']}/{$img_metadata['file']}"; | |
$image = wp_get_image_editor($img_full_path); | |
if (is_wp_error($image)) | |
return FALSE; | |
if (isset($size[3])) | |
$image->set_quality($size[3]); | |
$crop = isset($size[2])? $size[2] : TRUE; | |
$image->resize($size[0], $size[1], $crop); | |
$result = $image->save(); | |
if (is_wp_error($result)) | |
return FALSE; | |
$img_metadata['sizes'][$size_string] = array( | |
'file' => $result['file'], | |
'width' => $result['width'], | |
'height' => $result['height'], | |
'mime-type' => $result['mime-type'] | |
); | |
wp_update_attachment_metadata($attachment_id, $img_metadata); | |
} | |
// Otherwise, return false. | |
else | |
{ | |
return FALSE; | |
} | |
} | |
$img_full_url = "{$upload_dir['baseurl']}/{$img_metadata['file']}"; | |
$img_resized_url = str_replace(wp_basename($img_metadata['file']), $img_metadata['sizes'][$size_string]['file'], $img_full_url); | |
$is_intermediate = TRUE; | |
return array( | |
$img_resized_url, | |
$img_metadata['sizes'][$size_string]['width'], | |
$img_metadata['sizes'][$size_string]['height'], | |
$is_intermediate | |
); | |
}, 10, 3); |
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