--- /dev/null
+--------------------------------------------------------------------
+ The Xdebug License, version 1.01
+ (Based on "The PHP License", version 3.0)
+ Copyright (c) 2003-2012 Derick Rethans. All rights reserved.
+--------------------------------------------------------------------
+
+Redistribution and use in source and binary forms, with or without
+modification, is permitted provided that the following conditions
+are met:
+
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+
+ 3. The name "Xdebug" must not be used to endorse or promote products
+ derived from this software without prior written permission. For
+ written permission, please contact derick@xdebug.org.
+
+ 4. Products derived from this software may not be called "Xdebug", nor
+ may "Xdebug" appear in their name, without prior written permission
+ from derick@xdebug.org.
+
+ 5. Derick Rethans may publish revised and/or new versions of the
+ license from time to time. Each version will be given a
+ distinguishing version number. Once covered code has been
+ published under a particular version of the license, you may
+ always continue to use it under the terms of that version. You
+ may also choose to use such covered code under the terms of any
+ subsequent version of the license published by Derick Rethans. No
+ one other than Derick Rethans has the right to modify the terms
+ applicable to covered code created under this License.
+
+ 6. Redistributions of any form whatsoever must retain the following
+ acknowledgment: "This product includes Xdebug, freely available
+ from <http://xdebug.org/>".
+
+THIS SOFTWARE IS PROVIDED BY DERICK RETHANS ``AS IS'' AND ANY
+EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PHP DEVELOPMENT TEAM OR
+ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+--------------------------------------------------------------------
+
+This software consists of voluntary contributions made by some
+individuals on behalf of Derick Rethans.
+
+Derick Rethans can be contacted via e-mail at derick@xdebug.org.
+
+For more information Xdebug, please see <http://xdebug.org>.