Foreach element in $_POST?

[IWP506@gmail.com]

Hey

Is there a way to go through each element in the $_POST supervariable?

I'm making a page with dynamic forms, so I don't know for sure how many
$_POST variables there will be (the number of textboxes, radio buttons,
etc changes).

How can I either count them or do a foreach loop to do this?

Thanks

iwp506@gmail.co m

[Carl]

Re: Foreach element in $_POST?

IWP506@gmail.co m wrote:[color=blue]
> Hey
>
> Is there a way to go through each element in the $_POST supervariable?
>
> I'm making a page with dynamic forms, so I don't know for sure how many
> $_POST variables there will be (the number of textboxes, radio buttons,
> etc changes).
>
> How can I either count them or do a foreach loop to do this?
>
> Thanks
>
> iwp506@gmail.co m
>[/color]

iwp506,

Easy, just treat $_POST as an array and use foreach.

http://www.php.net/manual/en/control-structures.foreach.php

Don't forget to make the post values safe before using them if they were
input by the users...

Carl.

[IWP506@gmail.com]

Re: Foreach element in $_POST?


Carl wrote:[color=blue]
> IWP506@gmail.co m wrote:[color=green]
> > Hey
> >
> > Is there a way to go through each element in the $_POST supervariable?
> >
> > I'm making a page with dynamic forms, so I don't know for sure how many
> > $_POST variables there will be (the number of textboxes, radio buttons,
> > etc changes).
> >
> > How can I either count them or do a foreach loop to do this?
> >
> > Thanks
> >
> > iwp506@gmail.co m
> >[/color]
>
> iwp506,
>
> Easy, just treat $_POST as an array and use foreach.
> http://www.php.net/manual/en/control...es.foreach.php
>
> Don't forget to make the post values safe before using them if they were
> input by the users...
>
> Carl.[/color]

Ok, thanks

[Peter Fox]

Re: Foreach element in $_POST?

Following on from Carl's message. . .[color=blue]
>
>Easy, just treat $_POST as an array and use foreach.
>http://www.php.net/manual/en/control...es.foreach.php
>
>Don't forget to make the post values safe before using them if they were
>input by the users...
>[/color]
Further don't forget that elements of $_POST may be arrays in their own
right. eg Checkboxes. Here is a snippet of code as illustration


#---------------------------------------------------------------------
function POSTget($VarNam e,$tidy=TRUE){
# read POSTed value from HTTP_POST_VARS
# Normally we'll tidy up the input to remove leading and trailing spaces
and control chars
# but this can be overridden.
#---------------------------------------------------------------------
if (isset($_POST[$VarName])){
$rv = $_POST[$VarName];
if(!is_array($r v)){
if ($tidy) {$rv = TidyInput($rv); }
}
}else{
$rv='';
}
return $rv;
}

--
PETER FOX Not the same since the porcelain business went down the pan
peterfox@eminen t.demon.co.uk.n ot.this.bit.no. html
2 Tees Close, Witham, Essex.
Gravity beer in Essex <http://www.eminent.dem on.co.uk>

[ninjadev@gmail.com]

Re: Foreach element in $_POST?

fun with forms... iterate_form() not only spits out the values, but
will give you the $var = $_POST['var'] code for the receiving page...
have fun

function iterate_form()
{
echo "<b>Values: </b><br>";
foreach($_POST as $key => $value)
{
echo $key . " = " . $value . "<br>";
}
echo "<br><br><b>Hap py Coding:</b><br>";
foreach($_POST as $key => $value)
{
echo "$". $key . " = \$_POST['". $key . "'];<br>";
}
build_back_form ();
exit;
}

function build_back_form ()
{
echo "<form name='error' method='post' action='".
$_SERVER['HTTP_REFERER'] ."'>\n";
foreach ($_POST as $key => $value)
{
echo "<input type='hidden' name='" . $key . "' value='" .
$value . "'>\n";
}
echo "<input type='submit' name='submit' value='Go
Back'></form>\n";
}