Differences

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--- tecnica:gps_cartografia_gis:php_mapscript_recipes [2010/02/26 19:28] – niccolo
+++ tecnica:gps_cartografia_gis:php_mapscript_recipes [2010/02/26 23:46] (current) – niccolo
@@ Line 77: / Line 77: @@
 ===== Make a query =====
-Open an existing map file and perform a query-by-rectangle on a layer.
+Open an existing map file and perform a **query by rectangle** on a layer, print results with a **template**.
 <code php>
 <?php
 $map = ms_newMapObj("/var/www/demo.map");
 $selrect = ms_newrectObj();
 $selrect->setextent(1681023, 4850413, 1681906, 4851167);
@@ Line 120: / Line 118: @@
 <!-- MapServer Template -->
 <tr><td>[item name=objectid]</td><td>[item name=field1]</td><td>[item name=field2]</td></tr>
+</code>
+This example does not use the template, it **iterates through the query results**:
+<code php>
+<?php
+$map = ms_newMapObj("/var/www/demo.map");
+$selrect = ms_newrectObj();
+$selrect->setextent(1681023.81515592, 4850413.68207817, 1681906.91185973, 4851167.76185515);
+$map->queryByRect($selrect);
+$layer = $map->getLayerByName('layer_name');
+$count = $layer->getNumResults();
+print "Query result count: " . $count . "<br>\n";
+print "<pre>\n";
+for ($i = 0; $i < $count; $i++) {
+    $qRes = $layer->getResult($i);
+    print_r($qRes);
+}
+print "</pre>\n";
+?>
 </code>