<s>
PHP	B-Language
Development	I-Language
Tools	I-Language
(	O
PDT	O
)	O
is	O
a	O
language	O
IDE	O
plugin	O
for	O
the	O
Eclipse	B-Application
platform	I-Application
and	O
the	O
open-source	B-Application
project	O
that	O
develops	O
it	O
.	O
</s>
<s>
The	O
project	O
intends	O
to	O
encompass	O
all	O
tools	O
necessary	O
to	O
develop	O
PHP	B-Application
based	O
software	O
.	O
</s>
<s>
It	O
uses	O
the	O
existing	O
Eclipse	B-Application
Web	O
Tools	O
Project	O
to	O
provide	O
developers	O
with	O
PHP	B-Application
capabilities	O
.	O
</s>
<s>
All	O
these	O
PHP	B-Application
tools	I-Application
are	O
easy	O
to	O
use	O
and	O
developers	O
can	O
speed	O
up	O
the	O
development	O
process	O
by	O
using	O
these	O
tools	O
.	O
</s>
<s>
The	O
PHP	B-Language
Development	I-Language
Tools	I-Language
project	O
has	O
had	O
two	O
names	O
during	O
its	O
development	O
.	O
</s>
<s>
It	O
was	O
initially	O
named	O
PHP	B-Language
Development	I-Language
Tools	I-Language
,	O
then	O
changed	O
to	O
PHP	B-Application
IDE	I-Application
,	O
and	O
reverted	O
to	O
PHP	B-Language
Development	I-Language
Tools	I-Language
on	O
January	O
1	O
,	O
2007	O
.	O
</s>
<s>
Zend	O
sells	O
a	O
competing	O
product	O
named	O
Zend	B-Application
Studio	I-Application
.	O
</s>
<s>
PDT	O
,	O
as	O
free	O
software	O
,	O
may	O
cannibalize	O
sales	O
of	O
Zend	B-Application
Studio	I-Application
although	O
the	O
latter	O
has	O
more	O
features	O
.	O
</s>
<s>
Others	O
contend	O
that	O
PDT	O
is	O
deliberately	O
maintained	O
as	O
a	O
"	O
lite	O
"	O
version	O
of	O
Zend	B-Application
Studio	I-Application
.	O
</s>
