68 lines
1.7 KiB
PHP
68 lines
1.7 KiB
PHP
<?php
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/**
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** array.php
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**
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** This contains functions that work with array manipulation. They
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** will help sort, and do other types of things with arrays
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**
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** $Id$
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**/
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$array_php = true;
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function ary_sort($ary,$col, $dir = 1){
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// The globals are used because USORT determines what is passed to comp2
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// These should be $this->col and $this->dir in a class
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// Would beat using globals
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if(!is_array($col)){
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$col = array($col);
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}
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$GLOBALS['col'] = $col; // Column or Columns as an array
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$GLOBALS['dir'] = $dir; // Direction, a positive number for ascending a negative for descending
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usort($ary,'comp2');
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return $ary;
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}
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function comp2($a,$b,$i = 0) {
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global $col;
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global $dir;
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$c = count($col) -1;
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if ($a[$col[$i]] == $b[$col[$i]]){
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$r = 0;
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while($i < $c && $r == 0){
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$i++;
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$r = comp2($a,$b,$i);
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}
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} elseif($a[$col[$i]] < $b[$col[$i]]){
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$r = -1 * $dir; // Im not sure why you must * dir here, but it wont work just before the return...
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} else {
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$r = 1 * $dir;
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}
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return $r;
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}
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function removeElement($array, $element) {
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$j = 0;
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for ($i = 0;$i < count($array);$i++)
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if ($i != $element) {
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$newArray[$j] = $array[$i];
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$j++;
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}
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return $newArray;
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}
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function array_cleave($array1, $column)
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{
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$key=0;
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$array2 = array();
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while ($key < count($array1)) {
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array_push($array2, $array1[$key][$column]);
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$key++;
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}
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return ($array2);
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}
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?>
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