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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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272 | 'child_of' => 0, 'exclude' => '', 'title_li' => __('Pages'), 'echo' => 1, 'authors' => ''); |
273 | $r = array_merge($defaults, $r); |
274 |
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275 | $output = ''; |
276 |
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277 | // sanitize, mostly to keep spaces out |
278 | $r['exclude'] = preg_replace('[^0-9,]', '', $r['exclude']); |
279 |
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280 | // Allow plugins to filter an array of excluded pages |
281 | $r['exclude'] = implode(',', apply_filters('wp_list_pages_excludes', explode(',', $r['exclude']))); |
282 |
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283 | // Query pages. |
284 | $pages = get_pages($r); |
285 |
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286 | if ( !empty($pages) ) { |
287 | if ( $r['title_li'] ) |
288 | $output .= '<li class="pagenav">' . $r['title_li'] . '<ul>'; |
289 |
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290 | global $wp_query; |