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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 |
|---|---|
| 852 | * @since 4.4.0 The `$iptc` parameter was added. |
| 853 | * @since 5.0.0 The `$exif` parameter was added. |
| 854 | * |
| 855 | * @param array $meta Image meta data. |
| 856 | * @param string $file Path to image file. |
| 857 | * @param int $image_type Type of image, one of the `IMAGETYPE_XXX` constants. |
| 858 | * @param array $iptc IPTC data. |
| 859 | * @param array $exif EXIF data. |
| 860 | */ |
| 861 | return apply_filters( 'wp_read_image_metadata', $meta, $file, $image_type, $iptc, $exif ); |
| 862 | |
| 863 | } |
| 864 | |
| 865 | /** |
| 866 | * Validate that file is an image. |
| 867 | * |
| 868 | * @since 2.5.0 |
| 869 | * |
| 870 | * @param string $path File path to test if valid image. |