84 lines
2.5 KiB
PHP
84 lines
2.5 KiB
PHP
<?php
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require_once("../lib/phpchartdir.php");
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# The currently selected year
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if (isset($_GET["year"]))
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$selectedYear = $_GET["year"];
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else
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$selectedYear = 2001;
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# SQL statement to get the monthly revenues for the selected year.
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$SQL =
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"Select Software, Hardware, Services From revenue Where Year(TimeStamp) = ".
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"$selectedYear Order By TimeStamp";
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#
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# Connect to database and read the query result into arrays
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#
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mysql_connect("localhost", "test", "test");
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mysql_select_db("sample");
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$result = mysql_query($SQL);
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while ($row = mysql_fetch_row($result)) {
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$software[] = $row[0];
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$hardware[] = $row[1];
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$services[] = $row[2];
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}
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# Serialize the data into a string to be used as HTTP query parameters
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$httpParam = sprintf("year=%s&software=%s&hardware=%s&services=%s", $selectedYear,
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join(",", $software), join(",", $hardware), join(",", $services));
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#
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# The following code generates the <option> tags for the HTML select box, with the
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# <option> tag representing the currently selected year marked as selected.
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#
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$optionTags = array_pad(array(), 2001 - 1990 + 1, null);
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for($i = 1990; $i < 2001 + 1; ++$i) {
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if ($i == $selectedYear) {
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$optionTags[$i - 1990] = "<option value='$i' selected>$i</option>";
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} else {
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$optionTags[$i - 1990] = "<option value='$i'>$i</option>";
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}
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}
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$selectYearOptions = join("", $optionTags);
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?>
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<html>
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<body topmargin="5" leftmargin="5" rightmargin="0" marginwidth="5" marginheight="5">
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<div style="font-size:18pt; font-family:verdana; font-weight:bold">
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Database Integration Demo (2)
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</div>
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<hr color="#000080">
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<div style="font-size:10pt; font-family:verdana; width:600px">
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This example demonstrates creating a chart using data from a database. The database
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query is performed in the containing HTML page. The data are then passed to the chart
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generation pages as HTTP GET parameters.
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<ul>
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<li><a href="viewsource.php?file=<?php echo $_SERVER["SCRIPT_NAME"]?>">
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View containing HTML page source code
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</a></li>
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<li><a href="viewsource.php?file=dbdemo2a.php">
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View chart generation page source code for upper chart
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</a></li>
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<li><a href="viewsource.php?file=dbdemo2b.php">
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View chart generation page source code for lower chart
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</a></li>
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</ul>
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<form>
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I want to obtain the revenue data for the year
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<select name="year">
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<?php echo $selectYearOptions?>
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</select>
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<input type="submit" value="OK">
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</form>
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</div>
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<img src="dbdemo2a.php?<?php echo $httpParam?>">
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<br><br>
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<img src="dbdemo2b.php?<?php echo $httpParam?>">
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</body>
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</html>
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