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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 105 | $metadata['sizes'][$size] = $resized; |
| 106 | } |
| 107 | |
| 108 | // fetch additional metadata from exif/iptc |
| 109 | $image_meta = wp_read_image_metadata( $file ); |
| 110 | if ($image_meta) |
| 111 | $metadata['image_meta'] = $image_meta; |
| 112 | |
| 113 | } |
| 114 | return apply_filters( 'wp_generate_attachment_metadata', $metadata ); |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * wp_load_image() - Load an image which PHP Supports. |
| 119 | * |
| 120 | * @package WordPress |
| 121 | * @internal Missing Long Description |
| 122 | * @param string $file Filename of the image to load |
| 123 | * @return resource The resulting image resource on success, Error string on failure. |