load_image_to_edit
函数
load_image_to_edit ( $attachment_id, $mime_type, $size = 'full' )
- 参数
-
-
(int)
$attachment_id
Attachment ID.- Required: 是
-
(string)
$mime_type
Image mime type.- Required: 是
-
(string|int[])
$size
Optional. Image size. Accepts any registered image size name, or an array of width and height values in pixels (in that order). Default ‘full’.- Required: 否
- Default: ‘full’
-
(int)
- 返回值
-
- (resource|GdImage|false) The resulting image resource or GdImage instance on success, false on failure.
- 定义位置
-
-
wp-admin/includes/image.php
, line 1007
-
wp-admin/includes/image.php
- 引入
- 2.9.0
- 弃用
- –
加载一个用于编辑的图像资源。
function load_image_to_edit( $attachment_id, $mime_type, $size = 'full' ) { $filepath = _load_image_to_edit_path( $attachment_id, $size ); if ( empty( $filepath ) ) { return false; } switch ( $mime_type ) { case 'image/jpeg': $image = imagecreatefromjpeg( $filepath ); break; case 'image/png': $image = imagecreatefrompng( $filepath ); break; case 'image/gif': $image = imagecreatefromgif( $filepath ); break; case 'image/webp': $image = false; if ( function_exists( 'imagecreatefromwebp' ) ) { $image = imagecreatefromwebp( $filepath ); } break; default: $image = false; break; } if ( is_gd_image( $image ) ) { /** * Filters the current image being loaded for editing. * * @since 2.9.0 * * @param resource|GdImage $image Current image. * @param int $attachment_id Attachment ID. * @param string|int[] $size Requested image size. Can be any registered image size name, or * an array of width and height values in pixels (in that order). */ $image = apply_filters( 'load_image_to_edit', $image, $attachment_id, $size ); if ( function_exists( 'imagealphablending' ) && function_exists( 'imagesavealpha' ) ) { imagealphablending( $image, false ); imagesavealpha( $image, true ); } } return $image; }
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