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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 |
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2201 | * Passing a non-null value will effectively short-circuit get_avatar(), passing |
2202 | * the value through the {@see 'pre_get_avatar'} filter and returning early. |
2203 | * |
2204 | * @since 4.2.0 |
2205 | * |
2206 | * @param string $avatar HTML for the user's avatar. Default null. |
2207 | * @param int|object|string $id_or_email A user ID, email address, or comment object. |
2208 | * @param array $args Arguments passed to get_avatar_url(), after processing. |
2209 | */ |
2210 | $avatar = apply_filters( 'pre_get_avatar', null, $id_or_email, $args ); |
2211 |
|
2212 | if ( ! is_null( $avatar ) ) { |
2213 | /** This filter is documented in wp-includes/pluggable.php */ |
2214 | return apply_filters( 'get_avatar', $avatar, $id_or_email, $args['size'], $args['default'], $args['alt'], $args ); |
2215 | } |
2216 |
|
2217 | if ( ! $args['force_display'] && ! get_option( 'show_avatars' ) ) { |
2218 | return false; |
2219 | } |