From php multidimensional array get html ul li ul li... with less loops (using less system resources) -


have php array

array (     [0] => array         (             [numberrenamed] => 2             [topicname] => contacts             [upperlevelnumberrenamed] => 0         )      [1] => array         (             [numberrenamed] => 3             [topicname] => legal services             [upperlevelnumberrenamed] => 1         )      [2] => array         (             [numberrenamed] => 1             [topicname] => services             [upperlevelnumberrenamed] => 0         )     [3] => array         (            [numberrenamed] => 4            [topicname] => accounting services            [upperlevelnumberrenamed] => 1         )  )

from array want html this

<div>  <ul class="mnav-ul"> <li class="mnav-ul-li">contacts</li> <li class="mnav-ul-li">services   <ul class="mnav-ul-ul">   <li>legal services</li>   <li>accounting services</li>   </ul> </li> </ul>  </div> <div style="clear:both"></div>

i did

1) created 1 array of top level menu items, array sub level menu(s) items , array contains upperlevelnumberrenamed of sub level menu(s) items

foreach ( $navigation $k_navigation => $v_navigation ){  if( $v_navigation['upperlevelnumberrenamed'] == 0 ){ $top_level_navigation[] = $v_navigation; }  else if( $v_navigation['upperlevelnumberrenamed'] != 0 ){  $sub_level_navigation[] = $v_navigation; $sublev_upper_level_number_renamed[] = $v_navigation['upperlevelnumberrenamed'];  }//else if( $v_navigation['upperlevelnumberrenamed'] != 0 ){   }//foreach ( $navigation $k_navigation => $v_navigation ){

2) loop @ first through top level items array , inside each loop again loop through sub level menu(s) items

$main_navigation = ' <div> <ul class="mnav-ul"> ';  foreach ( $top_level_navigation $k_top_level_navigation => $v_top_level_navigation ){  if( !in_array( $v_top_level_navigation['numberrenamed'], $sublev_upper_level_number_renamed ) ) { $main_navigation .= '<li class="mnav-ul-li">'. $v_top_level_navigation['topicname']. '</li>'; }  else if( in_array( $v_top_level_navigation['numberrenamed'], $sublev_upper_level_number_renamed ) ) { $main_navigation .= '<li class="mnav-ul-li">'. $v_top_level_navigation['topicname']. '';  $main_navigation .= '<ul class="mnav-ul-ul">';  foreach ( $sub_level_navigation $k_sub_level_navigation => $v_sub_level_navigation ){  if( $v_top_level_navigation['numberrenamed'] == $v_sub_level_navigation['upperlevelnumberrenamed'] ){ $main_navigation .= '<li>'. $v_sub_level_navigation['topicname']. '</li>'; }  }//foreach ( $sub_level_navigation $k_sub_level_navigation => $v_sub_level_navigation ){  $main_navigation .= '</ul></li>';  }//if( ( in_array( $v_top_level_navigation['numberrenamed'], $sublev_upper_level_number_renamed ) ) {  }//foreach ( $navigation $k_navigation => $v_navigation ){  $main_navigation .= '</ul> </div> <div style="clear:both"></div>';  echo $main_navigation;

can need. many loops (possible waste of system resources). possible same result less loops (using less system resurces)?


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