functions/array.php

   1 <?php
   2    /**
   3     **  array.php
   4     **
   5     **  This contains functions that work with array manipulation.  They
   6     **  will help sort, and do other types of things with arrays
   7     **
   8     **  $Id$
   9     **/
  10
  11    $array_php = true;
  12
  13    function ary_sort($ary,$col, $dir = 1){
  14       // The globals are used because USORT determines what is passed to comp2
  15       // These should be $this->col and $this->dir in a class
  16       // Would beat using globals
  17       if(!is_array($col)){
  18          $col = array($col);
  19       }
  20       $GLOBALS['col'] = $col;  // Column or Columns as an array
  21       if ($dir > 0)
  22           $dir = 1;
  23       else
  24           $dir = -1;
  25       $GLOBALS['dir'] = $dir;  // Direction, a positive number for ascending a negative for descending
  26
  27       usort($ary,'array_comp2');
  28       return $ary;
  29   }
  30
  31   function array_comp2($a,$b,$i = 0) {
  32          global $col;
  33          global $dir;
  34          $c = count($col) -1;
  35          if ($a[$col[$i]] == $b[$col[$i]]){
  36             $r = 0;
  37             while($i < $c && $r == 0){
  38                $i++;
  39                $r = comp2($a,$b,$i);
  40             }
  41          } elseif($a[$col[$i]] < $b[$col[$i]]){
  42             return (- $dir);
  43          }
  44          return $dir;
  45       }
  46
  47    function removeElement($array, $element) {
  48       $j = 0;
  49       for ($i = 0;$i < count($array);$i++)
  50          if ($i != $element) {
  51             $newArray[$j] = $array[$i];
  52             $j++;
  53          }
  54
  55       return $newArray;
  56    }
  57
  58   function array_cleave($array1, $column)
  59   {
  60     $key=0;
  61     $array2 = array();
  62     while ($key < count($array1)) {
  63         array_push($array2, $array1[$key][$column]);
  64         $key++;
  65     }
  66
  67     return ($array2);
  68   }
  69
  70 ?>