oikp_prev() – Get the ID of the previous post in menu order.

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Description

Get the ID of the previous post in menu order.

The reverse of next

Usage

oikp_prev( $post );

Parameters

$post

( mixed ) required –

Returns

void

Source

File name: oik-presentation/includes/oikp-lazy-nav.inc
Lines:

function oikp_prev( $post ) {
  global $oikp_post_tree;
  if ( !isset( $post_tree ) ) {
    oikp_tree( $post->post_type );
  }
  bw_trace2( $oikp_post_tree );
  
  $key = array_search( $post->ID, $oikp_post_tree);
  bw_trace2( $key, "key", false );
  $key--;
  $result = bw_array_get( $oikp_post_tree, $key, null ); 
  if ( !$result) { 
    $result = end( $oikp_post_tree);
  }    
  return( get_permalink( $result) );
  
  
}