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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 |
---|---|
1285 | /** |
1286 | * Filters the markup of header images. |
1287 | * |
1288 | * @since 4.4.0 |
1289 | * |
1290 | * @param string $html The HTML image tag markup being filtered. |
1291 | * @param object $header The custom header object returned by 'get_custom_header()'. |
1292 | * @param array $attr Array of the attributes for the image tag. |
1293 | */ |
1294 | return apply_filters( 'get_header_image_tag', $html, $header, $attr ); |
1295 | } |
1296 |
|
1297 | /** |
1298 | * Displays the image markup for a custom header image. |
1299 | * |
1300 | * @since 4.4.0 |
1301 | * |
1302 | * @param array $attr Optional. Attributes for the image markup. Default empty. |
1303 | */ |