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diff --git a/ext/date/tests/DateTimeZone_listIdentifiers_basic1.phpt b/ext/date/tests/DateTimeZone_listIdentifiers_basic1.phpt
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+++ b/ext/date/tests/DateTimeZone_listIdentifiers_basic1.phpt
@@ -0,0 +1,36 @@
+--TEST--
+Test DateTimeZone::listIdentifiers function : basic functionality 
+--FILE--
+<?php
+/* Prototype  : array DateTimeZone::listIdentifiers ( void )
+ * Description: Returns numerically index array with all timezone identifiers  
+ * Source code: ext/date/php_date.c
+ * Alias to functions: timezone_identifiers_list
+ */
+
+echo "*** Testing DateTimeZone::listIdentifiers() : basic functionality ***\n";
+
+//Set the default time zone 
+date_default_timezone_set("GMT");
+
+$zones = DateTimeZone::listIdentifiers();
+echo "Check return tpe is ARRAY\n";
+var_dump(is_array($zones));
+
+echo "Check array contains some common timezones\n";
+var_dump(in_array("Europe/London", $zones));
+var_dump(in_array("America/New_York", $zones));
+var_dump(in_array("UTC", $zones));
+
+?>
+===DONE===
+--EXPECT--
+*** Testing DateTimeZone::listIdentifiers() : basic functionality ***
+Check return tpe is ARRAY
+bool(true)
+Check array contains some common timezones
+bool(true)
+bool(true)
+bool(true)
+===DONE===
+	
+\ No newline at end of file