echoing values of an array

vronsky

Hy again to the community.
Could anybody help?

I have a form that ask a numeric value
form1.html

how many you are?
<input type="text" name="how_many" size="2">

Then in another form I dinamically create so many text inputs
how are the number requested,then I collect the data and I post it to another page(result.php)

form2.php

for($i=0;$i<$how_many;$i++){
echo:"your name:";
echo:"<input type=text name=how_many".$i." size=2>";
}

But how can I handle this array?
I don't know the name of the keys and how many they are:
could be [howmany0]=>bob,[howmany01=>tim...... etc etc
result.php

$your_names = $HTTP_GET_POST;
//how can I echo the values in the array?

So I have to rebuild the name of the variable,but if with html
i can build a string and echo "how_many".$i;
i can't in code write $howmany.$i;

Please,help.

Davy

After a quick read, I didn't understand a bloody word of that!

But, going from the topic title, you want to use a foreach loop:

foreach($array as $temporary_var){
   echo $temporary_var;
}

The values in the array are temporarily stored in the $temporary_var each time the loop is made. In the { }'s are what happens each cycle. In this case it echos until the end of the array.

BTW I don't know what the colon in

echo:"Your Name";

is about. You don't need it, really. Well I've never seen it before.

Where did you learn PHP?

laserlight

You are not handling an array, you are using (or would be using) variable variables.

This is one way for an array:

for ($i = 0; $i < $how_many; $i++) {
	echo "your name:";
	echo "<input type=\"text\" name=\"how_many[]\" size=\"2\">";
}

Then $POST['how_many'] would be the array of textfields, starting from $POST['how_many'][0]

vronsky

Thank you laserlight and Davy...
I got.

paulnaj

Laserlight and Davy have answered your question but I was already in the midst of doing this, so you can have it anyway ...

You could put a hidden field here (form2.php)...

echo:"<input type=hidden name=how_many value=".$_REQUEST['how_many'].">"; 
for($i=0;$i<$_REQUEST['how_many'];$i++){ 
echo:"your name:"; 
echo:"<input type=text name=how_many".$i." size=2>"; 
}

... which gets sent on to result.php ...

echo $_REQUEST['how_many'];
for($i=0;$i<$_REQUEST['how_many'];$i++){ 
echo $_REQUEST['how_many'.$i];
}

Note that the use $HTTP... variables is now deprecated. You should use $POST, $GET, $REQUEST etc as soon as possible ...even if the old way works on your current setup.

See predefined variables for details

One other thing ... this is not crucial at the moment, but is becoming more and more so ... put "" around your attribute values ...

echo '<input type="hidden" name="how_many" value="'.$_REQUEST['how_many'].'">';

... you can use '' for the string itself. Apart from anything else, it's a lot easier to debug.
(I've kept to your style above)

Paul.

EDIT: typo