<s>
PHP-GTK	B-Language
is	O
a	O
set	O
of	O
language	B-Application
bindings	I-Application
for	O
PHP	B-Application
which	O
allow	O
GTK	B-Application
GUI	B-Application
applications	O
to	O
be	O
written	O
in	O
PHP	B-Application
.	O
</s>
<s>
PHP-GTK	B-Language
provides	O
an	O
object-oriented	B-Language
interface	O
to	O
GTK	B-Application
classes	O
and	O
functions	O
.	O
</s>
<s>
While	O
PHP-GTK	B-Language
partially	O
supports	O
GTK2	B-Application
,	O
GTK3	B-Application
is	O
not	O
supported	O
at	O
all	O
.	O
</s>
<s>
PHP-GTK	B-Language
was	O
originally	O
conceived	O
by	O
Andrei	B-Language
Zmievski	I-Language
,	O
who	O
is	O
also	O
actively	O
involved	O
in	O
the	O
development	O
of	O
PHP	B-Application
and	O
the	O
Zend	B-Language
Engine	I-Language
.	O
</s>
<s>
The	O
idea	O
was	O
received	O
well	O
by	O
the	O
PHP	B-Application
community	O
,	O
and	O
more	O
people	O
started	O
to	O
get	O
involved	O
with	O
the	O
project	O
.	O
</s>
<s>
James	O
Moore	O
and	O
Steph	O
Fox	O
were	O
among	O
the	O
first	O
to	O
join	O
in	O
,	O
contributing	O
a	O
great	O
deal	O
to	O
PHP-GTK	B-Language
through	O
their	O
documentation	O
efforts	O
,	O
and	O
Frank	O
Kromann	O
-	O
also	O
from	O
the	O
PHP	B-Application
development	O
team	O
-	O
supplied	O
Windows	B-Application
binaries	O
for	O
the	O
project	O
.	O
</s>
<s>
The	O
first	O
version	O
of	O
PHP-GTK	B-Language
was	O
released	O
in	O
March	O
2001	O
.	O
</s>
<s>
More	O
people	O
began	O
to	O
get	O
involved	O
,	O
and	O
several	O
extensions	O
were	O
contributed	O
introducing	O
new	O
widgets	O
,	O
such	O
as	O
Scintilla	B-Language
and	O
.	O
</s>
<s>
PHP-GTK	B-Language
1.0	O
was	O
released	O
in	O
October	O
2003	O
alongside	O
several	O
extensions	O
including	O
a	O
wrapper	O
for	O
libglade	B-Language
,	O
which	O
allowed	O
the	O
cross-platform	B-Operating_System
Glade	B-Language
UI	O
builder	O
to	O
be	O
used	O
in	O
creating	O
PHP-GTK	B-Language
applications	O
.	O
</s>
<s>
Zmievski	O
and	O
Fox	O
are	O
still	O
working	O
on	O
the	O
project	O
,	O
with	O
Fox	O
now	O
maintaining	O
PHP-GTK	B-Language
for	O
Windows	B-Application
.	O
</s>
<s>
The	O
planned	O
next	O
major	O
release	O
,	O
PHP-GTK	B-Language
2	O
fully	O
utilizes	O
PHP	B-Application
5	O
's	O
powerful	O
object	O
model	O
support	O
,	O
and	O
brings	O
the	O
improved	O
portability	O
of	O
GTK	B-Application
2.6	O
as	O
well	O
as	O
its	O
new	O
set	O
of	O
widgets	O
.	O
</s>
<s>
The	O
project	O
also	O
has	O
support	O
for	O
GtkSourceView	O
,	O
which	O
provides	O
a	O
source	B-Application
code	I-Application
editor	I-Application
widget	O
.	O
</s>
<s>
Scott	O
Mattocks	O
,	O
an	O
active	O
member	O
of	O
the	O
PHP-GTK	B-Language
documentation	O
group	O
,	O
has	O
also	O
written	O
a	O
book	O
on	O
the	O
subject	O
of	O
PHP-GTK	B-Language
programming	O
.	O
</s>
<s>
The	O
project	O
is	O
only	O
compatible	O
with	O
GTK	B-Application
2	O
,	O
not	O
version	O
3	O
.	O
</s>
<s>
WxPHP	B-Language
(	O
WxWidgets	B-Language
for	O
PHP	B-Application
)	O
exists	O
as	O
an	O
alternative	O
to	O
develop	O
GTK	B-Application
PHP	B-Application
applications	O
.	O
</s>
<s>
The	O
sample	O
PHP-GTK	B-Language
2	O
program	O
instantiates	O
a	O
GtkWindow	O
widget	O
with	O
the	O
title	O
"	O
Hello	O
World	O
!	O
</s>
<s>
Several	O
tools	O
have	O
sprung	O
up	O
that	O
assist	O
the	O
simple	O
deployment	O
of	O
PHP-GTK	B-Language
applications	O
.	O
</s>
<s>
PHP	B-Application
compilers	O
such	O
as	O
PriadoBlender	O
and	O
Roadsend	O
PHP	B-Application
(	O
Currently	O
only	O
compatible	O
with	O
PHP-GTK	B-Language
1	O
,	O
while	O
latest	O
snapshot	O
includes	O
PHP-GTK	B-Language
2	O
)	O
enable	O
the	O
compilation	O
of	O
applications	O
written	O
in	O
PHP-GTK	B-Language
to	O
a	O
standalone	O
binary	O
executable	O
.	O
</s>
<s>
Alan	O
Knowles	O
 '	O
PECL	B-Application
package	O
,	O
,	O
also	O
allows	O
compilation	O
of	O
PHP	B-Application
into	O
bytecode	O
to	O
hide	O
the	O
source	O
code	O
.	O
</s>
