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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 |
---|---|
1237 |
|
1238 | /** |
1239 | * Filters the list of header image attributes. |
1240 | * |
1241 | * @since 5.9.0 |
1242 | * |
1243 | * @param array $attr Array of the attributes for the image tag. |
1244 | * @param object $header The custom header object returned by 'get_custom_header()'. |
1245 | */ |
1246 | $attr = apply_filters( 'get_header_image_tag_attributes', $attr, $header ); |
1247 |
|
1248 | $attr = array_map( 'esc_attr', $attr ); |
1249 | $html = '<img'; |
1250 |
|
1251 | foreach ( $attr as $name => $value ) { |
1252 | $html .= ' ' . $name . '="' . $value . '"'; |
1253 | } |
1254 |
|
1255 | $html .= ' />'; |