squirrelmail/functions/array.php

<?php

/**
 * array.php
 *
 * Copyright (c) 1999-2001 The Squirrelmail Development Team
 * Licensed under the GNU GPL. For full terms see the file COPYING.
 *
 * This contains functions that work with array manipulation.  They
 * will help sort, and do other types of things with arrays
 *
 * $Id$
 */

/*****************************************************************/
/*** THIS FILE NEEDS TO HAVE ITS FORMATTING FIXED!!!           ***/
/*** PLEASE DO SO AND REMOVE THIS COMMENT SECTION.             ***/
/***    + Base level indent should begin at left margin, as    ***/
/***      the first line of the function definition below.     ***/
/***    + All identation should consist of four space blocks   ***/
/***    + Tab characters are evil.                             ***/
/***    + all comments should use "slash-star ... star-slash"  ***/
/***      style -- no pound characters, no slash-slash style   ***/
/***    + FLOW CONTROL STATEMENTS (if, while, etc) SHOULD      ***/
/***      ALWAYS USE { AND } CHARACTERS!!!                     ***/
/***    + Please use ' instead of ", when possible. Note "     ***/
/***      should always be used in _( ) function calls.        ***/
/*** Thank you for your help making the SM code more readable. ***/
/*****************************************************************/

function ary_sort($ary,$col, $dir = 1){
      // The globals are used because USORT determines what is passed to comp2
      // These should be $this->col and $this->dir in a class
      // Would beat using globals
      if(!is_array($col)){
         $col = array($col);
      }
      $GLOBALS['col'] = $col;  // Column or Columns as an array
      if ($dir > 0)
          $dir = 1;
      else
          $dir = -1;
      $GLOBALS['dir'] = $dir;  // Direction, a positive number for ascending a negative for descending

      usort($ary,'array_comp2');
      return $ary;
  }

  function array_comp2($a,$b,$i = 0) {
         global $col;
         global $dir;
         $c = count($col) -1;
         if ($a[$col[$i]] == $b[$col[$i]]){
            $r = 0;
            while($i < $c && $r == 0){
               $i++;
               $r = comp2($a,$b,$i);
            }
         } elseif($a[$col[$i]] < $b[$col[$i]]){
            return (- $dir);
         } 
	 return $dir;
      }

   function removeElement($array, $element) {
      $j = 0;
      for ($i = 0;$i < count($array);$i++)
         if ($i != $element) {
            $newArray[$j] = $array[$i];
            $j++;
         }

      return $newArray;
   }

  function array_cleave($array1, $column)
  {
    $key=0;
    $array2 = array();
    while ($key < count($array1)) {
        array_push($array2, $array1[$key][$column]);
        $key++;
    }

    return ($array2);
  }

?>