1 | <?php |
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2 | /*******************************************************************\ |
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3 | * phpGroupWare API - Arrayfunctions * |
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4 | * Written by Lars Kneschke <lkneschke@phpgw.de> * |
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5 | * Copyright (C) 2002, 2003 Lars Kneschke * |
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6 | * ----------------------------------------------------------------- * |
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7 | * This library is part of the phpGroupWare API * |
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8 | * ----------------------------------------------------------------- * |
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9 | * This program is free software; you can redistribute it and/or * |
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10 | * modify it under the terms of the GNU General Public License as * |
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11 | * published by the Free Software Foundation; either version 2 of * |
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12 | * the License, or (at your option) any later version. * |
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13 | * * |
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14 | * This program is distributed in the hope that it will be useful, * |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * |
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17 | * General Public License for more details. * |
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18 | * * |
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19 | * You should have received a copy of the GNU General Public License * |
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20 | * along with this program; if not, write to the Free Software * |
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21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * |
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22 | \*******************************************************************/ |
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23 | |
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24 | class arrayfunctions |
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25 | { |
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26 | function arrayfunctions($vars='') |
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27 | { |
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28 | } |
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29 | |
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30 | /* |
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31 | * arfsort() - (AR)ray (F)ield Sort. |
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32 | * Sort a multi-dimensional array according |
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33 | * to a list of fields. |
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34 | * @param $a The array to sort |
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35 | * @param $fl Field list (in order of importance) |
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36 | */ |
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37 | |
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38 | function arfsort( $a, $fl, $_sort='ASC' ) |
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39 | { |
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40 | $GLOBALS['__ARFSORT_LIST__'] = $fl; |
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41 | |
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42 | $this->sort=$_sort; |
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43 | |
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44 | if (is_array($a)) |
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45 | { |
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46 | usort( $a, array($this,'arfsort_func') ); |
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47 | return $a; |
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48 | } |
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49 | return False; |
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50 | } |
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51 | |
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52 | /* |
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53 | * Internal sorting function for arfsort() |
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54 | */ |
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55 | function arfsort_func( $a, $b ) |
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56 | { |
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57 | foreach( $GLOBALS['__ARFSORT_LIST__'] as $f ) |
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58 | { |
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59 | if($this->sort == 'ASC') |
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60 | { |
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61 | $strc = strcmp( $a[$f], $b[$f] ); |
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62 | } |
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63 | else |
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64 | { |
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65 | $strc = strcmp( $b[$f], $a[$f] ); |
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66 | } |
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67 | if ( $strc != 0 ) |
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68 | { |
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69 | return $strc; |
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70 | } |
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71 | } |
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72 | return 0; |
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73 | } |
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74 | |
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75 | } // end class arrayfunctions |
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76 | ?> |
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