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php

testing filter ext in RC1

php.internals

Kevin Waterson

20 years ago

<?php
$var=1234;
echo filter_data($var, FILTER_VALIDATE_INT);
?>

should the return values be either NULL or 1234?
well, it should return 1234
if var was abc1234 then it would return NULL, is that correct?

Kevin

--
"Democracy is two wolves and a lamb voting on what to have for lunch.
Liberty is a well-armed lamb contesting the vote."

Pierre Joye

20 years ago

Hi,

On 7/26/06, Kevin Waterson <kevin@oceania.net> wrote:

> <?php
> $var=1234;
> echo filter_data($var, FILTER_VALIDATE_INT);
> ?>
>
> should the return values be either NULL or 1234?
> well, it should return 1234

It does.

> if var was abc1234 then it would return NULL, is that correct?

False if the value is not valid, null if the value does not exist (for
example with input_get or input_get_args). In the case of filter_data,
as you pass the variable, it will be either false or the correct
value.

Cheers,
--Pierre

Kevin Waterson

20 years ago

This one time, at band camp, Pierre <pierre.php@gmail.com> wrote:

> > if var was abc1234 then it would return NULL, is that correct?
>
> False if the value is not valid, null if the value does not exist (for
> example with input_get or input_get_args). In the case of filter_data,
> as you pass the variable, it will be either false or the correct
> value.

here it returns '0'

Kevin

--
"Democracy is two wolves and a lamb voting on what to have for lunch.
Liberty is a well-armed lamb contesting the vote."

Pierre Joye

20 years ago

On 7/28/06, Kevin Waterson <kevin@oceania.net> wrote:

> This one time, at band camp, Pierre <pierre.php@gmail.com> wrote:
>
>
> > > if var was abc1234 then it would return NULL, is that correct?
> >
> > False if the value is not valid, null if the value does not exist (for
> > example with input_get or input_get_args). In the case of filter_data,
> > as you pass the variable, it will be either false or the correct
> > value.
>
> here it returns '0'

Please show me some code, "here" is not really helpful. For example:

$ php -r '$var=1234; var_dump(filter_data($var, FILTER_VALIDATE_INT));'
int(1234)

$ php -r '$var=ab1234; var_dump(filter_data($var, FILTER_VALIDATE_INT));'
bool(false)

--Pierre

Jared Williams

20 years ago

Hi,

Also it does seem NUL char safe?

php -r "$var='3'.chr(0).'foo'; var_dump(filter_data($var,
FILTER_VALIDATE_INT));"
int(3)


Jared

Pierre Joye

20 years ago

On 7/28/06, Jared Williams <jared.williams1@ntlworld.com> wrote:

> Hi,
>
>         Also it does seem NUL char safe?
>
> php -r "$var='3'.chr(0).'foo'; var_dump(filter_data($var,
> FILTER_VALIDATE_INT));"
> int(3)

Please report bugs in pecl.php.net/filter. It is hard to keep a trace
of each post around here :)

Thanks,
--Pierre

Jared Williams

20 years ago

> -----Original Message-----
> From: Pierre [mailto:pierre.php@gmail.com]
> Sent: 28 July 2006 18:34
> To: Jared.Williams1@ntlworld.com
> Cc: Kevin Waterson; internals@lists.php.net
> Subject: Re: [PHP-DEV] testing filter ext in RC1
>
> On 7/28/06, Jared Williams <jared.williams1@ntlworld.com> wrote:
> > Hi,
> >
> >         Also it does seem NUL char safe?
> >
> > php -r "$var='3'.chr(0).'foo'; var_dump(filter_data($var,
> > FILTER_VALIDATE_INT));"
> > int(3)
>
> Please report bugs in pecl.php.net/filter. It is hard to keep a trace
> of each post around here :)
>

Reported.

http://pecl.php.net/bugs/bug.php?id=8315 - NUL
http://pecl.php.net/bugs/bug.php?id=8316 - Empty string

Jared

Jared Williams

20 years ago

Hi,
An empty string returns 0.

php -r "$var=''; var_dump(filter_data($var, FILTER_VALIDATE_INT));"
int(0)

Which maybe is what was intended, but imho still should return false.

Jared