diff --git a/scripts/crossref/generate_php_symbols.php b/scripts/crossref/generate_php_symbols.php
new file mode 100755
index 0000000000..d46460c054
--- /dev/null
+++ b/scripts/crossref/generate_php_symbols.php
@@ -0,0 +1,81 @@
+#!/usr/bin/env php
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+$root = dirname(dirname(dirname(__FILE__)));
+require_once $root.'/scripts/__init_script__.php';
+require_once $root.'/scripts/__init_env__.php';
+
+phutil_require_module('phutil', 'console');
+phutil_require_module('phutil', 'parser/xhpast/bin');
+
+if ($argc !== 1) {
+  echo phutil_console_format(
+    "usage: find . -type f -name '*.php' | ./generate_php_symbols.php\n");
+  exit(1);
+}
+
+$input = file_get_contents('php://stdin');
+$input = trim($input);
+$input = explode("\n", $input);
+
+$data = array();
+$futures = array();
+
+foreach ($input as $file) {
+  $file = Filesystem::readablePath($file);
+  $data[$file] = Filesystem::readFile($file);
+  $futures[$file] = xhpast_get_parser_future($data[$file]);
+}
+
+foreach (Futures($futures)->limit(8) as $file => $future) {
+  $tree = XHPASTTree::newFromDataAndResolvedExecFuture(
+    $data[$file],
+    $future->resolve());
+
+  $root = $tree->getRootNode();
+
+  $functions = $root->selectDescendantsOfType('n_FUNCTION_DECLARATION');
+  foreach ($functions as $function) {
+    $name = $function->getChildByIndex(2);
+    print_symbol($file, 'function', $name);
+  }
+
+  $classes = $root->selectDescendantsOfType('n_CLASS_DECLARATION');
+  foreach ($classes as $class) {
+    $class_name = $class->getChildByIndex(1);
+    print_symbol($file, 'class', $class_name);
+  }
+
+  $interfaces = $root->selectDescendantsOfType('n_INTERFACE_DECLARATION');
+  foreach ($interfaces as $interface) {
+    $interface_name = $interface->getChildByIndex(1);
+    print_symbol($file, 'interface', $interface_name);
+  }
+}
+
+function print_symbol($file, $type, $token) {
+  $parts = array(
+    $token->getConcreteString(),
+    $type,
+    'php',
+    $token->getLineNumber(),
+    '/'.ltrim($file, './'),
+  );
+  echo implode(' ', $parts)."\n";
+}
diff --git a/scripts/crossref/import_project_symbols.php b/scripts/crossref/import_project_symbols.php
new file mode 100755
index 0000000000..058e8d07f1
--- /dev/null
+++ b/scripts/crossref/import_project_symbols.php
@@ -0,0 +1,154 @@
+#!/usr/bin/env php
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+$root = dirname(dirname(dirname(__FILE__)));
+require_once $root.'/scripts/__init_script__.php';
+require_once $root.'/scripts/__init_env__.php';
+
+if ($argc !== 2) {
+  echo phutil_console_format(
+    "usage: import_project_symbols.php __project_name__ < __symbol_file__\n");
+  exit(1);
+}
+
+$project_name = $argv[1];
+$project = id(new PhabricatorRepositoryArcanistProject())->loadOneWhere(
+  'name = %s',
+  $project_name);
+
+if (!$project) {
+  // TODO: Provide a less silly way to do this explicitly, or just do it right
+  // here.
+  echo "Project '{$project_name}' is unknown. Upload a diff to implicitly ".
+       "create it.\n";
+  exit(1);
+}
+
+echo "Parsing input from stdin...\n";
+$input = file_get_contents('php://stdin');
+$input = trim($input);
+$input = explode("\n", $input);
+
+$map = array();
+$symbols = array();
+foreach ($input as $key => $line) {
+  $line_no = $key + 1;
+  $matches = null;
+  $ok = preg_match('/^([^ ]+) ([^ ]+) ([^ ]+) (\d+) (.*)$/', $line, $matches);
+  if (!$ok) {
+    throw new Exception(
+      "Line #{$line_no} of input is invalid. Expected five space-delimited ".
+      "fields: symbol name, symbol type, symbol language, line number, path. ".
+      "For example:\n\n".
+      "idx function php 13 /path/to/some/file.php\n\n".
+      "Actual line was:\n\n".
+      "{$line}");
+  }
+  list($all, $name, $type, $lang, $line_number, $path) = $matches;
+
+  if (isset($map[$name][$type][$lang])) {
+    $previous = $map[$name][$type][$lang] + 1;
+    throw new Exception(
+      "Line #{$line_no} of input is invalid. It specifies a duplicate symbol ".
+      "(same name, language, and type) which has already been defined ".
+      "elsewhere. You must preprocess the symbol list to remove duplicates ".
+      "and choose exactly one master definition for each symbol. This symbol ".
+      "was previously defined on line #{$previous}.\n\n".
+      "Line #{$line_no}:\n".
+      $line."\n\n".
+      "Line #{$previous}:\n".
+      $input[$previous - 1]);
+  } else {
+    $map[$name][$type][$lang] = $key;
+  }
+
+  if (strlen($name) > 128) {
+    throw new Exception(
+      "Symbol name '{$name}' defined on line #{$line_no} is too long, maximum ".
+      "symbol name length is 128 characters.");
+  }
+
+  if (strlen($type) > 12) {
+    throw new Exception(
+      "Symbol type '{$type}' defined on line #{$line_no} is too long, maximum ".
+      "symbol type length is 12 characters.");
+  }
+
+  if (strlen($lang) > 32) {
+    throw new Exception(
+      "Symbol language '{$lang}' defined on line #{$line_no} is too long, ".
+      "maximum symbol language length is 32 characters.");
+  }
+
+  if (!strlen($path) || $path[0] != 0) {
+    throw new Exception(
+      "Path '{$path}' defined on line #{$line_no} is invalid. Paths should be ".
+      "begin with '/' and specify a path from the root of the project, like ".
+      "'/src/utils/utils.php'.");
+  }
+
+  $symbols[] = array(
+    'name' => $name,
+    'type' => $type,
+    'lang' => $lang,
+    'line' => $line_number,
+    'path' => $path,
+  );
+}
+
+echo "Looking up path IDs...\n";
+$path_map = PhabricatorRepositoryCommitChangeParserWorker::lookupOrCreatePaths(
+  ipull($symbols, 'path'));
+
+$symbol = new PhabricatorRepositorySymbol();
+$conn_w = $symbol->establishConnection('w');
+
+echo "Preparing queries...\n";
+$sql = array();
+foreach ($symbols as $dict) {
+  $sql[] = qsprintf(
+    $conn_w,
+    '(%d, %s, %s, %s, %d, %d)',
+    $project->getID(),
+    $dict['name'],
+    $dict['type'],
+    $dict['lang'],
+    $dict['line'],
+    $path_map[$dict['path']]);
+}
+
+echo "Purging old symbols...\n";
+queryfx(
+  $conn_w,
+  'DELETE FROM %T WHERE arcanistProjectID = %d',
+  $symbol->getTableName(),
+  $project->getID());
+
+echo "Loading ".number_format(count($sql))." symbols...\n";
+foreach (array_chunk($sql, 128) as $chunk) {
+  queryfx(
+    $conn_w,
+    'INSERT INTO %T
+      (arcanistProjectID, symbolName, symbolType, symbolLanguage, lineNumber,
+        pathID) VALUES %Q',
+    $symbol->getTableName(),
+    implode(', ', $chunk));
+}
+
+echo "Done.\n";
diff --git a/src/applications/repository/worker/commitchangeparser/base/PhabricatorRepositoryCommitChangeParserWorker.php b/src/applications/repository/worker/commitchangeparser/base/PhabricatorRepositoryCommitChangeParserWorker.php
index b92805bc27..d581947658 100644
--- a/src/applications/repository/worker/commitchangeparser/base/PhabricatorRepositoryCommitChangeParserWorker.php
+++ b/src/applications/repository/worker/commitchangeparser/base/PhabricatorRepositoryCommitChangeParserWorker.php
@@ -25,11 +25,11 @@ abstract class PhabricatorRepositoryCommitChangeParserWorker
     return 60 * 60 * 24;
   }
 
-  protected function lookupOrCreatePaths(array $paths) {
+  public static function lookupOrCreatePaths(array $paths) {
     $repository = new PhabricatorRepository();
     $conn_w = $repository->establishConnection('w');
 
-    $result_map = $this->lookupPaths($paths);
+    $result_map = self::lookupPaths($paths);
 
     $missing_paths = array_fill_keys($paths, true);
     $missing_paths = array_diff_key($missing_paths, $result_map);
@@ -47,13 +47,13 @@ abstract class PhabricatorRepositoryCommitChangeParserWorker
           PhabricatorRepository::TABLE_PATH,
           implode(', ', $sql));
       }
-      $result_map += $this->lookupPaths($missing_paths);
+      $result_map += self::lookupPaths($missing_paths);
     }
 
     return $result_map;
   }
 
-  private function lookupPaths(array $paths) {
+  private static function lookupPaths(array $paths) {
     $repository = new PhabricatorRepository();
     $conn_w = $repository->establishConnection('w');