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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 2885 | * @param string|null $avatar HTML for the user's avatar. Default null. |
| 2886 | * @param mixed $id_or_email The avatar to retrieve. Accepts a user_id, Gravatar MD5 hash, |
| 2887 | * user email, WP_User object, WP_Post object, or WP_Comment object. |
| 2888 | * @param array $args Arguments passed to get_avatar_url(), after processing. |
| 2889 | */ |
| 2890 | $avatar = apply_filters( 'pre_get_avatar', null, $id_or_email, $args ); |
| 2891 | |
| 2892 | if ( ! is_null( $avatar ) ) { |
| 2893 | /** This filter is documented in wp-includes/pluggable.php */ |
| 2894 | return apply_filters( 'get_avatar', $avatar, $id_or_email, $args['size'], $args['default'], $args['alt'], $args ); |
| 2895 | } |
| 2896 | |
| 2897 | if ( ! $args['force_display'] && ! get_option( 'show_avatars' ) ) { |
| 2898 | return false; |
| 2899 | } |
| 2900 | |
| 2901 | $url2x = get_avatar_url( $id_or_email, array_merge( $args, array( 'size' => $args['size'] * 2 ) ) ); |
| 2902 | |
| 2903 | $args = get_avatar_data( $id_or_email, $args ); |
| Line | Code |
| 2976 | * @param string $avatar HTML for the user's avatar. |
| 2977 | * @param mixed $id_or_email The avatar to retrieve. Accepts a user_id, Gravatar MD5 hash, |
| 2978 | * user email, WP_User object, WP_Post object, or WP_Comment object. |
| 2979 | * @param int $size Square avatar width and height in pixels to retrieve. |
| 2980 | * @param string $default_value URL for the default image or a default type. Accepts '404', 'retro', 'monsterid', |
| 2981 | * 'wavatar', 'indenticon', 'mystery', 'mm', 'mysteryman', 'blank', or 'gravatar_default'. |
| 2982 | * @param string $alt Alternative text to use in the avatar image tag. |
| 2983 | * @param array $args Arguments passed to get_avatar_data(), after processing. |
| 2984 | */ |
| 2985 | return apply_filters( 'get_avatar', $avatar, $id_or_email, $args['size'], $args['default'], $args['alt'], $args ); |
| 2986 | } |
| 2987 | endif; |
| 2988 | |
| 2989 | if ( ! function_exists( 'wp_text_diff' ) ) : |
| 2990 | /** |
| 2991 | * Displays a human readable HTML representation of the difference between two strings. |
| 2992 | * |
| 2993 | * The Diff is available for getting the changes between versions. The output is |
| 2994 | * HTML, so the primary use is for displaying the changes. If the two strings |