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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 |
---|---|
145 | * |
146 | * @since 1.5.0 |
147 | * |
148 | * @param int $id Optional. Post ID. |
149 | * @return string |
150 | */ |
151 | function get_the_guid( $id = 0 ) { |
152 | $post = &get_post($id); |
153 |
|
154 | return apply_filters('get_the_guid', $post->guid); |
155 | } |
156 |
|
157 | /** |
158 | * Display the post content. |
159 | * |
160 | * @since 0.71 |
161 | * |
162 | * @param string $more_link_text Optional. Content for when there is more text. |
163 | * @param bool $stripteaser Optional. Strip teaser content before the more text. Default is false. |