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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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151 | * @uses apply_filters() Calls 'template_directory_uri' filter on template directory URI path and template name. |
152 | * |
153 | * @return string Template directory URI. |
154 | */ |
155 | function get_template_directory_uri() { |
156 | $template = get_template(); |
157 | $theme_root_uri = get_theme_root_uri( $template ); |
158 | $template_dir_uri = "$theme_root_uri/$template"; |
159 |
|
160 | return apply_filters( 'template_directory_uri', $template_dir_uri, $template, $theme_root_uri ); |
161 | } |
162 |
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163 | /** |
164 | * Retrieve theme data from parsed theme file. |
165 | * |
166 | * The description will have the tags filtered with the following HTML elements |
167 | * whitelisted. The <b>'a'</b> element with the <em>href</em> and <em>title</em> |
168 | * attributes. The <b>abbr</b> element with the <em>title</em> attribute. The |
169 | * <b>acronym</b> element with the <em>title</em> attribute allowed. The |