check if PDF file is valid?

[laredotornado@zipmail.com]

Hi,

I'm using PHP 4.4.4 but can upgrade if necessary. Given a path to a
file on my server, is there a way I can check if that file is of a PDF
format? I'm guessing the answer to this may depend on some versioning
info too, so if that's true, let's just consider for the latest verion
of PDF.

Thanks for your help, - Dave

[=?ISO-8859-15?Q?Iv=E1n_S=E1nchez_Ortega?=]

Re: check if PDF file is valid?

laredotornado@z ipmail.com wrote:

I'm using PHP 4.4.4 but can upgrade if necessary. Given a path to a
file on my server, is there a way I can check if that file is of a PDF
format? I'm guessing the answer to this may depend on some versioning
info too, so if that's true, let's just consider for the latest verion
of PDF.

If you're running your scripts on a linux (or unix) server, just run
the "file" command to know the type of file.

e.g.:

$type = shell_exec("fil e $filename");

--
----------------------------------
Iván Sánchez Ortega -ivansanchez-algarroba-escomposlinux-punto-org-

Ruido en la lÃnea cortesÃa de Telefónica.

[C. (http://symcbean.blogspot.com/)]

Re: check if PDF file is valid?

On 14 Feb, 22:11, Iván Sánchez Ortega <ivansanchez-...@rroba-
escomposlinux.-.punto.-.orgwrote:

laredotorn...@z ipmail.com wrote:

I'm using PHP 4.4.4 but can upgrade if necessary. Given a path to a
file on my server, is there a way I can check if that file is of a PDF
format? I'm guessing the answer to this may depend on some versioning
info too, so if that's true, let's just consider for the latest verion
of PDF.

>
If you're running your scripts on a linux (or unix) server, just run
the "file" command to know the type of file.
>
e.g.:
>
$type = shell_exec("fil e $filename");
>

For a given value of 'valid'. A more rigourous solution might be to
run it through pdftops then back through pstopdf

C.