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sample php display order (sorting) for an array

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  1. /*
  2. This is a very basic example of how to change the sort order of an array.
  3. This information would normally be sent back to a database table. 
  4. */		
  5.  
  6. $arr[27]['id']      = 27;
  7. $arr[27]['order']   = 1;
  8. $arr[27]['name']    = 'about';
  9.  
  10.  
  11. $arr[38]['id']      = 38;
  12. $arr[38]['order']   = 2;
  13. $arr[38]['name']    = 'contact';
  14.  
  15.  
  16. $arr[52]['id']      = 52;
  17. $arr[52]['order']   = 3;
  18. $arr[52]['name']    = 'FAQ';
  19.  
  20.  
  21. $arr[44]['id']      = 44;
  22. $arr[44]['order']   = 4;
  23. $arr[44]['name']    = 'Services';	
  24.  
  25. $arr[45]['id']      = 45;
  26. $arr[45]['order']   = 5;
  27. $arr[45]['name']    = 'Sitemap';			
  28.  
  29.  
  30. echo 'original '.'<br />';
  31. foreach($arr as $item)
  32. {
  33.     echo 'Order: '.$item['order'].' '.$item['name'].'<br />';
  34. }				
  35.  
  36.  
  37.  
  38. $id             = 44;
  39. $int_new_order  = 1;
  40. $int_current_order = 4;
  41.  
  42. if( $int_new_order > $arr[$id]['order'] )
  43. {
  44.     //echo 'move higher in number';
  45.     foreach($arr as $k=>$v)
  46.     {
  47.  
  48.         if( $v['order'] > $int_current_order AND  $v['order'] <= $int_new_order)
  49.         {
  50.             $arr[$k]['order'] = $v['order']-1;
  51.         }
  52.  
  53.     }	
  54. } 
  55. else
  56. {
  57.     //echo 'move lower in number';
  58.     foreach($arr as $k=>$v)
  59.     {
  60.  
  61.         if( $v['order'] < $int_current_order AND  $v['order'] >= $int_new_order)
  62.         {
  63.             $arr[$k]['order'] = $v['order']+1;
  64.         }
  65.  
  66.     }			    
  67.  
  68. }
  69.  
  70. $arr[$id]['order'] = $int_new_order;
  71.  
  72. echo '<br />';
  73.  
  74. echo 'final '.'<br />';
  75. foreach($arr as $item)
  76. {
  77.     echo 'Order: '.$item['order'].' '.$item['name'].'<br />';
  78. }

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