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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 |
|---|---|
| 983 | * |
| 984 | * The filter is evaluated for all image sizes except 'full'. |
| 985 | * |
| 986 | * @since 3.1.0 |
| 987 | * |
| 988 | * @param string $path Path to the current image. |
| 989 | * @param string $attachment_id Attachment ID. |
| 990 | * @param string $size Size of the image. |
| 991 | */ |
| 992 | $filepath = apply_filters( 'load_image_to_edit_filesystempath', $filepath, $attachment_id, $size ); |
| 993 | } |
| 994 | } |
| 995 | } elseif ( function_exists( 'fopen' ) && ini_get( 'allow_url_fopen' ) ) { |
| 996 | /** |
| 997 | * Filters the image URL if not in the local filesystem. |
| 998 | * |
| 999 | * The filter is only evaluated if fopen is enabled on the server. |
| 1000 | * |
| 1001 | * @since 3.1.0 |