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1 | <?php |
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2 | /** |
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3 | ** array.php |
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4 | ** |
5 | ** This contains functions that work with array manipulation. They |
6 | ** will help sort, and do other types of things with arrays |
7 | ** |
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8 | ** $Id$ |
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9 | **/ |
10 | |
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11 | |
12 | if (defined ('array_php')) |
13 | return; |
14 | define ('array_php', true); |
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15 | |
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16 | function ary_sort($ary,$col, $dir = 1){ |
17 | // The globals are used because USORT determines what is passed to comp2 |
18 | // These should be $this->col and $this->dir in a class |
19 | // Would beat using globals |
20 | if(!is_array($col)){ |
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21 | $col = array($col); |
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22 | } |
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23 | $GLOBALS['col'] = $col; // Column or Columns as an array |
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24 | if ($dir > 0) |
25 | $dir = 1; |
26 | else |
27 | $dir = -1; |
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28 | $GLOBALS['dir'] = $dir; // Direction, a positive number for ascending a negative for descending |
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29 | |
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30 | usort($ary,'array_comp2'); |
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31 | return $ary; |
32 | } |
33 | |
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34 | function array_comp2($a,$b,$i = 0) { |
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35 | global $col; |
36 | global $dir; |
37 | $c = count($col) -1; |
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38 | if ($a[$col[$i]] == $b[$col[$i]]){ |
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39 | $r = 0; |
40 | while($i < $c && $r == 0){ |
41 | $i++; |
42 | $r = comp2($a,$b,$i); |
43 | } |
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44 | } elseif($a[$col[$i]] < $b[$col[$i]]){ |
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45 | return (- $dir); |
46 | } |
47 | return $dir; |
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48 | } |
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49 | |
50 | function removeElement($array, $element) { |
51 | $j = 0; |
52 | for ($i = 0;$i < count($array);$i++) |
53 | if ($i != $element) { |
54 | $newArray[$j] = $array[$i]; |
55 | $j++; |
56 | } |
57 | |
58 | return $newArray; |
59 | } |
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60 | |
61 | function array_cleave($array1, $column) |
62 | { |
63 | $key=0; |
64 | $array2 = array(); |
65 | while ($key < count($array1)) { |
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66 | array_push($array2, $array1[$key][$column]); |
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67 | $key++; |
68 | } |
69 | |
70 | return ($array2); |
71 | } |
72 | |
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73 | ?> |