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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 |
---|---|
1127 | * Fires for each custom column of a specific post type in the Posts list table. |
1128 | * |
1129 | * The dynamic portion of the hook name, `$post->post_type`, refers to the post type. |
1130 | * |
1131 | * @since 3.1.0 |
1132 | * |
1133 | * @param string $column_name The name of the column to display. |
1134 | * @param int $post_id The current post ID. |
1135 | */ |
1136 | do_action( "manage_{$post->post_type}_posts_custom_column", $column_name, $post->ID ); |
1137 | } |
1138 |
|
1139 | /** |
1140 | * @global WP_Post $post |
1141 | * |
1142 | * @param int|WP_Post $post |
1143 | * @param int $level |
1144 | */ |
1145 | public function single_row( $post, $level = 0 ) { |