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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 |
---|---|
1074 | /** |
1075 | * Filters the markup of header images. |
1076 | * |
1077 | * @since 4.4.0 |
1078 | * |
1079 | * @param string $html The HTML image tag markup being filtered. |
1080 | * @param object $header The custom header object returned by 'get_custom_header()'. |
1081 | * @param array $attr Array of the attributes for the image tag. |
1082 | */ |
1083 | return apply_filters( 'get_header_image_tag', $html, $header, $attr ); |
1084 | } |
1085 |
|
1086 | /** |
1087 | * Display the image markup for a custom header image. |
1088 | * |
1089 | * @since 4.4.0 |
1090 | * |
1091 | * @param array $attr Optional. Attributes for the image markup. Default empty. |
1092 | */ |