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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 |
---|---|
1241 | /** |
1242 | * Filters the markup of header images. |
1243 | * |
1244 | * @since 4.4.0 |
1245 | * |
1246 | * @param string $html The HTML image tag markup being filtered. |
1247 | * @param object $header The custom header object returned by 'get_custom_header()'. |
1248 | * @param array $attr Array of the attributes for the image tag. |
1249 | */ |
1250 | return apply_filters( 'get_header_image_tag', $html, $header, $attr ); |
1251 | } |
1252 |
|
1253 | /** |
1254 | * Displays the image markup for a custom header image. |
1255 | * |
1256 | * @since 4.4.0 |
1257 | * |
1258 | * @param array $attr Optional. Attributes for the image markup. Default empty. |
1259 | */ |