<s>
SPIP	B-Application
(	O
Système	O
de	O
Publication	O
pour	O
l'Internet	O
)	O
is	O
a	O
free	B-Application
software	I-Application
content	B-Protocol
management	I-Protocol
system	I-Protocol
designed	O
for	O
web	O
site	O
publishing	O
,	O
oriented	O
towards	O
online	O
collaborative	O
editing	O
.	O
</s>
<s>
The	O
last	O
P	O
in	O
the	O
word	O
SPIP	B-Application
stands	O
for	O
both	O
Partagé	O
(	O
shared	O
)	O
and	O
Participatif	O
(	O
participative	O
)	O
,	O
in	O
the	O
sense	O
that	O
the	O
software	O
is	O
designed	O
for	O
collective	O
online	O
editing	O
.	O
</s>
<s>
Its	O
mascot	B-Application
is	O
a	O
flying	O
squirrel	B-Protocol
,	O
in	O
reference	O
to	O
the	O
French-Belgian	O
comics	O
character	O
Spip	B-Application
.	O
</s>
<s>
The	O
software	O
is	O
written	O
in	O
PHP	B-Application
,	O
and	O
relies	O
on	O
one	O
or	O
more	O
SQL	B-Language
databases	I-Language
:	O
MySQL	B-Application
/	O
MariaDB	B-Application
,	O
SQLite	B-Language
or	O
PostgreSQL	B-Application
.	O
</s>
<s>
The	O
pages	O
of	O
the	O
site	O
are	O
generated	O
'	O
on	O
the	O
fly	O
 '	O
:	O
the	O
contents	O
stored	O
in	O
the	O
database	O
are	O
formatted	O
through	O
presentation	O
'	O
skeletons	O
 '	O
that	O
merge	O
HTML	B-Language
and	O
SPIP	B-Application
's	O
own	O
markup	O
language	O
.	O
</s>
<s>
A	O
caching	B-Protocol
system	O
avoids	O
the	O
generation	O
of	O
pages	O
at	O
each	O
request	O
:	O
when	O
a	O
page	O
is	O
requested	O
,	O
SPIP	B-Application
checks	O
if	O
it	O
does	O
n't	O
exist	O
in	O
its	O
cache	O
and	O
if	O
it	O
is	O
n't	O
too	O
old	O
,	O
it	O
will	O
be	O
displayed	O
.	O
</s>
<s>
SPIP	B-Application
was	O
originally	O
conceived	O
for	O
the	O
uzine.net	O
site	O
,	O
after	O
which	O
its	O
designers	O
released	O
it	O
under	O
GPL	B-License
License	I-License
.	O
</s>
<s>
Since	O
its	O
launch	O
2001	O
,	O
it	O
has	O
also	O
been	O
used	O
for	O
Le	O
Monde	O
diplomatique	O
newspaper	O
and	O
www.vacarme.eu.org	O
;	O
the	O
webmaster	O
of	O
Le	O
Monde	O
diplomatique	O
is	O
one	O
of	O
the	O
initiators	O
of	O
SPIP	B-Application
,	O
</s>
<s>
SPIP	B-Application
integrates	O
a	O
cache	O
mechanism	O
,	O
an	O
authentication	O
system	O
,	O
an	O
automatic	O
setup	O
module	O
and	O
an	O
interface	O
for	O
administration	O
and	O
input	O
of	O
articles	O
.	O
</s>
<s>
SPIP	B-Application
can	O
create	O
dynamic	O
pages	O
without	O
any	O
PHP	B-Application
knowledge	O
,	O
using	O
a	O
web	B-Application
template	I-Application
system	I-Application
known	O
as	O
'	O
skeletons''	O
.	O
</s>
<s>
In	O
January	O
2004	O
,	O
the	O
1.7	O
version	O
of	O
SPIP	B-Application
enables	O
the	O
management	O
of	O
multilingual	O
websites	O
,	O
and	O
implements	O
a	O
search	O
and	O
content	O
indexing	O
module	O
;	O
It	O
also	O
enables	O
syndication	O
of	O
other	O
sites	O
 '	O
contents	O
.	O
</s>
<s>
An	O
important	O
modification	O
for	O
developers	O
is	O
SPIP	B-Application
's	O
core	O
that	O
now	O
benefits	O
from	O
a	O
new	O
compiler	O
.	O
</s>
<s>
It	O
then	O
becomes	O
possible	O
to	O
elaborate	O
skeletons	O
with	O
more	O
complex	O
functionalities	O
without	O
requiring	O
any	O
coding	O
work	O
in	O
PHP	B-Application
.	O
</s>
<s>
The	O
1.9	O
version	O
(	O
1	O
)	O
introduced	O
a	O
plug-in	B-Application
system	O
and	O
numerous	O
changes	O
,	O
notably	O
in	O
the	O
organisation	O
of	O
component	O
files	O
(	O
particularly	O
the	O
transition	O
from	O
'	O
.php3	O
'	O
to	O
'	O
.php	B-Application
'	O
files	O
extensions	O
.	O
</s>
<s>
The	O
2.0	O
version	O
supports	O
multiple	O
SQL	B-Language
databases	I-Language
,	O
and	O
introduces	O
easy	O
skeletons	O
for	O
web	O
forms	O
.	O
</s>
<s>
The	O
2.1	O
version	O
builds	O
on	O
the	O
concept	O
of	O
modules	O
,	O
along	O
with	O
improved	O
security	O
and	O
stability	O
,	O
a	O
new	O
interface	O
for	O
plugins	B-Application
management	O
,	O
and	O
other	O
features	O
.	O
</s>
<s>
All	O
non-core	O
functionalities	O
are	O
now	O
implemented	O
as	O
plugins	B-Application
.	O
</s>
<s>
The	O
new	O
DATA	O
loop	O
allows	O
SPIP	B-Application
to	O
connect	O
to	O
any	O
kind	O
of	O
data	O
(	O
not	O
only	O
SQL	B-Language
tables	O
)	O
.	O
</s>
<s>
These	O
data	O
may	O
be	O
found	O
locally	O
(	O
XML	B-Protocol
,	O
CSV	O
,	O
YAML	B-Protocol
files	O
,	O
enumerations	O
...	O
)	O
or	O
directly	O
on	O
an	O
URL	O
(	O
list	O
of	O
YouTube	B-General_Concept
videos	I-General_Concept
,	O
Flickr	B-Algorithm
photos	O
,	O
Google	B-Application
spreadsheets	O
,	O
online	B-Application
calendar	I-Application
...	O
)	O
.	O
</s>
