Added test to accompany the FILTER_SANITIZE_ADD_SLASHES filter

ext/filter/tests/059.phpt

@@ -0,0 +1,33 @@
+--TEST--
+filter_var() and FILTER_SANITIZE_ADD_SLASHES
+--SKIPIF--
+<?php if (!extension_loaded("filter")) die("skip"); ?>
+--FILE--
+<?php
+
+function filter_test_compare($input) {
+    return filter_var($input, FILTER_SANITIZE_ADD_SLASHES) === filter_var($input, FILTER_SANITIZE_MAGIC_QUOTES);
+}
+
+var_dump(filter_var("test'asd'asd'' asd\'\"asdfasdf", FILTER_SANITIZE_ADD_SLASHES));
+var_dump(filter_var("'", FILTER_SANITIZE_ADD_SLASHES));
+var_dump(filter_var("", FILTER_SANITIZE_ADD_SLASHES));
+var_dump(filter_var(-1, FILTER_SANITIZE_ADD_SLASHES));
+
+var_dump(filter_test_compare("test'asd'asd'' asd\'\"asdfasdf"));
+var_dump(filter_test_compare("''"));
+var_dump(filter_test_compare(''));
+var_dump(filter_test_compare(-1));
+
+echo "Done\n";
+?>
+--EXPECT--
+string(36) "test\'asd\'asd\'\' asd\\\'\"asdfasdf"
+string(2) "\'"
+string(0) ""
+string(2) "-1"
+bool(true)
+bool(true)
+bool(true)
+bool(true)
+Done