Initial import.

vendor/phayes/geophp/tests/postgis.php

@@ -0,0 +1,82 @@
+<?
+// Uncomment to test
+# run_test();
+
+function run_test() {
+
+  header("Content-type: text");
+  
+  include_once('../geoPHP.inc');
+  
+  // Your database test table should contain 3 columns: name (text), type (text), geom (geometry)
+  $host =     'localhost';
+  $database = 'phayes';
+  $table =    'test';
+  $column =   'geom';
+  $user =     'phayes';
+  $pass =     'supersecret';
+  
+  $connection = pg_connect("host=$host dbname=$database user=$user password=$pass");
+  
+  // Truncate
+  pg_query($connection, "DELETE FROM $table");
+  
+  // Working with PostGIS and EWKB
+  // ----------------------------
+  
+  foreach (scandir('./input', SCANDIR_SORT_NONE) as $file) {
+    $parts = explode('.',$file);
+    if ($parts[0]) {
+      $name = $parts[0];
+      $format = $parts[1];
+      $value = file_get_contents('./input/'.$file);
+      print '---- Testing '.$file."\n";
+      flush();
+      $geometry = geoPHP::load($value, $format);
+      test_postgis($name, $format, $geometry, $connection, 'wkb');
+      $geometry->setSRID(4326);
+      test_postgis($name, $format, $geometry, $connection, 'ewkb');
+    }
+  }
+  print "Testing Done!";
+}
+
+function test_postgis($name, $type, $geom, $connection, $format) {
+  global $table;
+  
+  // Let's insert into the database using GeomFromWKB
+  $insert_string = pg_escape_bytea($geom->out($format));
+  pg_query($connection, "INSERT INTO $table (name, type, geom) values ('$name', '$type', GeomFromWKB('$insert_string'))");
+  
+  // SELECT using asBinary PostGIS
+  $result = pg_fetch_all(pg_query($connection, "SELECT asBinary(geom) as geom FROM $table WHERE name='$name'"));
+  foreach ($result as $item) {
+    $wkb = pg_unescape_bytea($item['geom']); // Make sure to unescape the hex blob
+    $geom = geoPHP::load($wkb, $format); // We now a full geoPHP Geometry object
+  }
+  
+  // SELECT and INSERT directly, with no wrapping functions
+  $result = pg_fetch_all(pg_query($connection, "SELECT geom as geom FROM $table WHERE name='$name'"));
+  foreach ($result as $item) {
+    $wkb = pack('H*',$item['geom']);   // Unpacking the hex blob
+    $geom = geoPHP::load($wkb, $format); // We now have a geoPHP Geometry
+  
+    // Let's re-insert directly into postGIS
+    // We need to unpack the WKB
+    $unpacked = unpack('H*', $geom->out($format));
+    $insert_string = $unpacked[1];
+    pg_query($connection, "INSERT INTO $table (name, type, geom) values ('$name', '$type', '$insert_string')");
+  }
+
+  // SELECT and INSERT using as EWKT (ST_GeomFromEWKT and ST_AsEWKT)
+  $result = pg_fetch_all(pg_query($connection, "SELECT ST_AsEWKT(geom) as geom FROM $table WHERE name='$name'"));
+  foreach ($result as $item) {
+    $wkt = $item['geom']; // Make sure to unescape the hex blob
+    $geom = geoPHP::load($wkt, 'ewkt'); // We now a full geoPHP Geometry object
+
+    // Let's re-insert directly into postGIS
+    $insert_string = $geom->out('ewkt');
+    pg_query($connection, "INSERT INTO $table (name, type, geom) values ('$name', '$type', ST_GeomFromEWKT('$insert_string'))");
+  }
+}
+