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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 |
---|---|
194 | $title = strip_tags($posts[0]->post_title); |
195 | $title = apply_filters('single_post_title', $title); |
196 | } |
197 |
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198 | $prefix = ''; |
199 | if ( isset($title) ) |
200 | $prefix = " $sep "; |
201 |
|
202 | $title = $prefix . $title; |
203 | $title = apply_filters('wp_title', $title, $sep); |
204 |
|
205 | // Send it out |
206 | if ( $display ) |
207 | echo $title; |
208 | else |
209 | return $title; |
210 | } |
211 |
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212 |
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