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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 |
|---|---|
| 1215 | |
| 1216 | debug_fwrite( $log, 'Post contents:' ); |
| 1217 | debug_fwrite( $log, $content . "\n" ); |
| 1218 | |
| 1219 | foreach ( $pung as $link_test ) { |
| 1220 | if ( !in_array( $link_test, $post_links_temp[0] ) ) { // link no longer in post |
| 1221 | $mid = $wpdb->get_col( $wpdb->prepare("SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, like_escape( $link_test ) . '%') ); |
| 1222 | do_action( 'delete_postmeta', $mid ); |
| 1223 | $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->postmeta WHERE meta_id IN(%s)", implode( ',', $mid ) ) ); |
| 1224 | do_action( 'deleted_postmeta', $mid ); |
| 1225 | } |
| 1226 | } |
| 1227 | |
| 1228 | foreach ( (array) $post_links_temp[0] as $link_test ) { |
| 1229 | if ( !in_array( $link_test, $pung ) ) { // If we haven't pung it already |
| 1230 | $test = @parse_url( $link_test ); |
| 1231 | if ( false === $test ) |
| 1232 | continue; |
| 1233 | if ( isset( $test['query'] ) ) |