checkdate and int-conversion

[Erik T.]

Hi,

I have a form that contains amongst others a text-field where users
should enter their year of birth.

<input type="text" name="year_of_b irth">

Within the php script that parses the info, I try to check if a valid
birth-date was given, using the checkdate function. This function
expects integers as parameters, so I tought converting the text to an
integer value would work.

checkdate (1, 1, (int)$_POST["year_of_bi rth"])

However, this doesn't work, and I cannot seem to find out why... Any clues?

cheers,
E.T.

[Janwillem Borleffs]

Re: checkdate and int-conversion

Erik T. wrote:[color=blue]
> Within the php script that parses the info, I try to check if a valid
> birth-date was given, using the checkdate function. This function
> expects integers as parameters, so I tought converting the text to an
> integer value would work.
>
> checkdate (1, 1, (int)$_POST["year_of_bi rth"])
>[/color]

No explicit casting required, PHP will take care of this automatically.
[color=blue]
> However, this doesn't work, and I cannot seem to find out why... Any
> clues?[/color]

It doesn't work as it always returns 0/1 or throws an error?

More info required, including your OS.


JW

[Erik T.]

Re: checkdate and int-conversion

Janwillem Borleffs wrote:[color=blue]
> Erik T. wrote:
>[color=green]
>>Within the php script that parses the info, I try to check if a valid
>>birth-date was given, using the checkdate function. This function
>>expects integers as parameters, so I tought converting the text to an
>>integer value would work.
>>
>>checkdate (1, 1, (int)$_POST["year_of_bi rth"])
>>[/color]
>
>
> No explicit casting required, PHP will take care of this automatically.[/color]

Without the casting, I get :

Warning: checkdate() expects parameter 3 to be long, string given in
ledenform.php on line 49

Line 49 looks like this:

if ( checkdate ( $_POST["geboortema and"] , $_POST["geboorteda g"],
$_POST["geboorteja ar"] ) )

With the typecast, I don't get an error, but checkdate always results as
FALSE.
[color=blue]
>
>[color=green]
>>However, this doesn't work, and I cannot seem to find out why... Any
>>clues?[/color]
>
>
> It doesn't work as it always returns 0/1 or throws an error?
>
> More info required, including your OS.[/color]

I'm hosting this at my provider. php_info result:

http://www.akindovzw.be/info.php

[Janwillem Borleffs]

Re: checkdate and int-conversion

Erik T. wrote:[color=blue]
> Without the casting, I get :
>
> Warning: checkdate() expects parameter 3 to be long, string given in
> ledenform.php on line 49
>[/color]

This means that $_POST["geboorteja ar"] does not start with a digit, but
probably with a white space character.
[color=blue]
> With the typecast, I don't get an error, but checkdate always results
> as FALSE.
>[/color]

When your try to cast a string to an integer and the string doesn't start
with a digit, the result will be 0, which is why checkdate() always returns
false.

Try to apply trim() to $_POST["geboorteja ar"] before using it and have a
close look at its value when the problem persists.


JW

[R. Rajesh Jeba Anbiah]

Re: checkdate and int-conversion

Erik T. wrote:
<snip>[color=blue]
> checkdate (1, 1, (int)$_POST["year_of_bi rth"])
>
> However, this doesn't work, and I cannot seem to find out why... Any[/color]
clues?

You may want to understand the casting basics in PHP:
1. http://in2.php.net/set_type#50255
2. http://in2.php.net/manual/en/languag...e-juggling.php

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