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# Axis--StandardLibrary.php

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    00001 <?PHP
    00002
    00003 #
    00004 #   Axis--StandardLibrary.php
    00005 #   A Collection of Utility Routines
    00006 #
    00007 #   Copyright 1999-2002 Axis Data
    00008 #   This code is free software that can be used or redistributed under the
    00009 #   terms of Version 2 of the GNU General Public License, as published by the
    00010 #   Free Software Foundation (http://www.fsf.org).
    00011 #
    00012 #   Author:  Edward Almasy (almasy@axisdata.com)
    00013 #
    00014 #   Part of the AxisPHP library v1.2.4
    00015 #   For more information see http://www.axisdata.com/AxisPHP/
    00016 #
    00017
    00018
    00019 # (accepts a date string in the form YYYY-MM-DD and adds or subtracts days)
    00020 function CalcDate($DateString, $DaysToAdd)
    00021 {
    00022     # parse date string
    00023     $Pieces = explode("-", $DateString);
    00024
    00025     # convert to value of date in seconds (a la Unix timestamp)
    00026     $DateInSeconds = mktime(1, 1, 1, $Pieces[1], $Pieces[2], $Pieces[0]);
    00027
    00028     # perform date arithmetic
    00029     $DateInSeconds = $DateInSeconds + ($DaysToAdd * (60 * 60 * 24));
    00030
    00031     # return YYYY-MM-DD date string to caller
    00032     return date("Y-m-d", $DateInSeconds);
    00033 }
    00034
    00035 function GetHtmlEscapedString($String)
    00036 {
    00037     return htmlentities(stripslashes($String));
    00038 }
    00039
    00040 function GetUnHtmlEscapedString($String)
    00041 {
    00042     $TranslationTable = get_html_translation_table(HTML_ENTITIES);
    00043     $TranslationTable = array_flip($TranslationTable);
    00044     return strtr($String, $TranslationTable);
    00045 }
    00046
    00047 function HtmlSafePrint($String)
    00048 {
    00049     print(GetHtmlEscapedString($String));
    00050 }
    00051
    00052 function PrintAutoRefreshPage($Title, $NewUrl)
    00053 {
    00054     </script>
    00055
    00056         <html>
    00057         <head>
    00058             <title><?php  printf("%s", $Title);  ?></title>
    00059             <meta http-equiv="refresh" content="0; URL=<?php  print($NewUrl);  ?>">
    00060         </head>
    00061         <body bgcolor="white">
    00062         </body>
    00063         </html>
    00064
    00065     <script language="php">
    00066 }
    00067
    00068 function GetOrdinalSuffix($Number)
    00069 {
    00070     if (($Number > 10) && ($Number < 20))
    00071     {
    00072         $Suffix = "th";
    00073     }
    00074     else
    00075     {
    00076         $Digit = $Number % 10;
    00077         if ($Digit == 1)
    00078         {
    00079             $Suffix = "st";
    00080         }
    00081         elseif ($Digit == 2)
    00082         {
    00083             $Suffix = "nd";
    00084         }
    00085         elseif ($Digit == 3)
    00086         {
    00087             $Suffix = "rd";
    00088         }
    00089         else
    00090         {
    00091             $Suffix = "th";
    00092         }
    00093     }
    00094
    00095     return $Suffix;
    00096 }
    00097
    00098 function GetOrdinalNumber($Number)
    00099 {
    00100     return $Number.GetOrdinalSuffix($Number);
    00101 }
    00102
    00103 function GetMonthName($MonthNumber)
    00104 {
    00105     $MonthNames = array(
    00106             1 => "January",
    00107             2 => "February",
    00108             3 => "March",
    00109             4 => "April",
    00110             5 => "May",
    00111             6 => "June",
    00112             7 => "July",
    00113             8 => "August",
    00114             9 => "September",
    00115             10 => "October",
    00116             11 => "November",
    00117             12 => "December");
    00118
    00119     return $MonthNames[$MonthNumber];
    00120 }
    00121
    00122 function PrintOptionList($ResultVar, $Items,
    00123                          $SelectedValue = NULL,
    00124                          $SubmitOnChange = "",
    00125                          $Size = 1,
    00126                          $PrintEvenIfEmpty = 1,
    00127                          $MultipleAllowed = false,
    00128                          $OnChangeAction = NULL,
    00129                          $Width = NULL)
    00130 {
    00131     if ((count($Items) > 0) || $PrintEvenIfEmpty)
    00132     {
    00133         # determine forced display width for option list (if needed)
    00134         if ($Width)
    00135         {
    00136             $ForcedWidthAttrib = " style=\"width: ".$Width."px;\"";
    00137         }
    00138         else
    00139         {
    00140             $Labels = $Items;
    00141             sort($Labels);
    00142             $MatchingCharThreshold = 11;
    00143             $MaxMatchingChars = $MatchingCharThreshold;
    00144             foreach ($Labels as $Label)
    00145             {
    00146                 if (isset($PreviousLabel))
    00147                 {
    00148                     $Len = ($MaxMatchingChars + 1);
    00149                     while (substr($Label, 0, $Len) ==
    00150                            substr($PreviousLabel, 0, $Len)
    00151                            && ($Len < strlen($Label)))
    00152                     {
    00153                         $MaxMatchingChars = $Len;
    00154                         $Len++;
    00155                     }
    00156                 }
    00157                 $PreviousLabel = $Label;
    00158             }
    00159             if ($MaxMatchingChars > $MatchingCharThreshold)
    00160             {
    00161                 $ExtraCharsToDisplayBeyondMatch = 6;
    00162                 $ForcedWidth = $MaxMatchingChars + $ExtraCharsToDisplayBeyondMatch;;
    00163                 $ForcedWidthAttrib = " style=\"width: ".$ForcedWidth."ex;\"";
    00164             }
    00165             else
    00166             {
    00167                 $ForcedWidthAttrib = " style=\"width: auto;\"";
    00168             }
    00169         }
    00170
    00171         # print option list begin
    00172         print("<select name=\"".$ResultVar."\""
    00173               ." size=\"".$Size."\""
    00174               ." id=\"".$ResultVar."\""
    00175               .($SubmitOnChange ? " onChange=\"submit()\"" : "")
    00176               .($OnChangeAction ? " onChange=\"".$OnChangeAction."\"" : "")
    00177               .($MultipleAllowed ? " multiple" : "")
    00178               .$ForcedWidthAttrib
    00179               .">\n");
    00180
    00181         # for each element in list
    00182         reset($Items);
    00183         while (list($Value, $Label) = each($Items))
    00184         {
    00185             # print option list item
    00186             printf("    <option value=\"%s\"", htmlspecialchars($Value));
    00187             if ((is_array($SelectedValue) && in_array($Value, $SelectedValue))
    00188                     || ($Value == $SelectedValue)) {  printf(" selected");  }
    00189             printf(">%s</option>\n", GetHtmlEscapedString($Label));
    00190         }
    00191
    00192         # print option list end
    00193         printf("</select>\n");
    00194     }
    00195 }
    00196
    00197 function PrintOptionListsOfDateComponents($FieldPrefix, $AllowNullDate = 0, $Year = -1, $Month = -1, $Day = -1, $SubmitOnChange = "")
    00198 {
    00199     # if no date passed in
    00200     if (($Year == -1) && ($AllowNullDate))
    00201     {
    00202         # if null date allowed
    00203         if ($AllowNullDate)
    00204         {
    00205             # use null date
    00206             $Year = 0;
    00207             $Month = 0;
    00208             $Day = 0;
    00209         }
    00210         else
    00211         {
    00212             # use current date
    00213             $Year = date("Y");
    00214             $Month = date("n");
    00215             $Day = date("j");
    00216         }
    00217     }
    00218
    00219     # if date string passed in
    00220     if ((strlen($Year) > 4) && ($Month == -1))
    00221     {
    00222         # split into component parts
    00223         list($Year, $Month, $Day) = split("[-/]", $Year);
    00224     }
    00225
    00226     # print option list for months if month value supplied
    00227     if ($Month != -1)
    00228     {
    00229         $Index = 1;
    00230         print("\n    <select name=\"".$FieldPrefix."Month\""
    00231               ." id=\"".$FieldPrefix."Month\""
    00232               .($SubmitOnChange ? " onChange='submit()'" : "")
    00233               .">\n");
    00234         if ($AllowNullDate)
    00235         {
    00236             print("<option value='0'>--</option>\n");
    00237         }
    00238         while ($Index <= 12)
    00239         {
    00240             if ($Index == $Month)
    00241             {
    00242                 printf("        <option value='%s' selected>%s</option>\n", $Index, GetMonthName($Index));
    00243             }
    00244             else
    00245             {
    00246                 printf("        <option value='%s'>%s</option>\n", $Index, GetMonthName($Index));
    00247             }
    00248             $Index++;
    00249         }
    00250         printf("    </select>\n");
    00251     }
    00252
    00253     # print option list for days if day value supplied
    00254     if ($Day != -1)
    00255     {
    00256         $Index = 1;
    00257         print("\n    <select name=\"".$FieldPrefix."Day\""
    00258               ." id=\"".$FieldPrefix."Day\""
    00259               .($SubmitOnChange ? " onChange='submit()'" : "")
    00260               .">\n");
    00261         if ($AllowNullDate)
    00262         {
    00263             print("<option value='0'>--</option>\n");
    00264         }
    00265         while ($Index <= 31)
    00266         {
    00267             if ($Index == $Day)
    00268             {
    00269                 printf("        <option value='%s' selected>%s</option>\n", $Index, GetOrdinalNumber($Index));
    00270             }
    00271             else
    00272             {
    00273                 printf("        <option value='%s'>%s</option>\n", $Index, GetOrdinalNumber($Index));
    00274             }
    00275             $Index++;
    00276         }
    00277         printf("    </select>\n");
    00278     }
    00279
    00280     # print option list for years
    00281     $Index = date("Y") - 45;
    00282     $EndIndex = $Index + 45;
    00283     print("\n    <select name=\"".$FieldPrefix."Year\""
    00284           ." id=\"".$FieldPrefix."Year\""
    00285           .($SubmitOnChange ? " onChange='submit()'" : "")
    00286           .">\n");
    00287     if ($AllowNullDate)
    00288     {
    00289         print("<option value='0'>--</option>\n");
    00290     }
    00291     while ($Index <= $EndIndex)
    00292     {
    00293         if ($Index == $Year)
    00294         {
    00295             printf("        <option value=\"%s\" selected>%s</option>\n", $Index, $Index);
    00296         }
    00297         else
    00298         {
    00299             printf("        <option value=\"%s\">%s</option>\n", $Index, $Index);
    00300         }
    00301         $Index++;
    00302     }
    00303     printf("    </select>\n");
    00304 }
    00305
    00306 function PrintOptionListsOfTimeComponents($FieldPrefix, $Hour = -1, $Minute = -1)
    00307 {
    00308     # use current date if no date passed in
    00309     if ($Hour == -1)
    00310     {
    00311         $Hour = date("G");
    00312         $Minute = date("i");
    00313     }
    00314
    00315     # print option list for hours if hour value supplied
    00316     $Index = 0;
    00317     print("\n    <select name=\"".$FieldPrefix."Hour\" id=\"".$FieldPrefix."Hour\">\n");
    00318     while ($Index < 24)
    00319     {
    00320         if ($Index == $Hour)
    00321         {
    00322             printf("        <option value='%s' selected>%d</option>\n", $Index, $Index);
    00323         }
    00324         else
    00325         {
    00326             printf("        <option value='%s'>%d</option>\n", $Index, $Index);
    00327         }
    00328         $Index++;
    00329     }
    00330     printf("    </select>\n");
    00331
    00332     # print option list for minutes if minute value supplied
    00333     if ($Minute != -1)
    00334     {
    00335         $Index = 0;
    00336         print("\n    <select name=\"".$FieldPrefix."Minute\" id=\"".$FieldPrefix."Minute\">\n");
    00337         while ($Index < 60)
    00338         {
    00339             if ($Index == $Minute)
    00340             {
    00341                 printf("        <option value='%s' selected>%02d</option>\n", $Index, $Index);
    00342             }
    00343             else
    00344             {
    00345                 printf("        <option value='%s'>%02d</option>\n", $Index, $Index);
    00346             }
    00347             $Index++;
    00348         }
    00349         printf("    </select>\n");
    00350     }
    00351 }
    00352
    00353 function LongestStringLineLength($String)
    00354 {
    00355     # split string on newlines
    00356     $Pieces = explode("\n", $String);
    00357
    00358     # for each line in string
    00359     $MaxLen = 0;
    00360     for ($Index = 0;  $Index < count($Pieces);  $Index++)
    00361     {
    00362         # save length if longer than current max
    00363         if (strlen($Pieces[$Index]) > $MaxLen)
    00364         {
    00365             $MaxLen = strlen($Pieces[$Index]);
    00366         }
    00367     }
    00368
    00369     # return length of longest segment to caller
    00370     return $MaxLen;
    00371 }
    00372
    00373 function PrintOptionListFromDB($DB, $Table, $Condition, $SortBy, $ResultVar, $ValueQuery, $LabelQuery, $SelectedValue, $Size = 1, $SubmitOnChange = "", $PrintEvenIfEmpty = 0)
    00374 {
    00375     # set up condition and sorting parameters
    00376     if ($Condition != "") {  $Condition = "WHERE ".$Condition;  }
    00377     if ($SortBy != "") {  $SortBy = "ORDER BY ".$SortBy;  }
    00378
    00379     # grab records to be listed from database
    00380     $QueryString = sprintf("SELECT * FROM %s %s %s",
    00381             $Table, $Condition, $SortBy);
    00382     $DB->Query($QueryString);
    00383
    00384     # if records were found
    00385     if ($DB->NumRowsSelected() > 0)
    00386     {
    00387         # build array of items
    00388         while ($Row = $DB->FetchRow())
    00389         {
    00390             $Items[$Row[$ValueQuery]] = $Row[$LabelQuery];
    00391         }
    00392
    00393         # sort array if not already sorted
    00394         if ($SortBy == "") {  asort($Items);  }
    00395     }
    00396
    00397     # print option list
    00398     PrintOptionList($ResultVar, $Items, $SelectedValue, $SubmitOnChange, $Size, $PrintEvenIfEmpty);
    00399 }
    00400
    00401
    00402 ?>

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