How to Receive Passed Arguments

danny88

Hi, I've done a search for this topic and I have't found a sufficient answer. I am new to php. I just tried to set up a simple form page with two text input fields. the input names are: $input1 and $input2. I am passing these variables to another page. The other page simply outputs the variable values: echo $input1 and echo $2 with no other lines of code. However, the error message I get is that the variables are undefined.

I thought it was ok to simply use the same name in the receiving page, and everything will work fine? Am I mistaken?

Anon

May be you can use the second file as action file for the form you have created in file one.

<form action file2.php method = post>....

danny88

Sorry, I'm not too familiar with "action" files. But, I was told that if I use a variable, for example named $temp, in a submitting page, then I could simply use the same variable name and access it, i.e. echo $temp, in the receiving page without having to make a new variable?

Am I wrong? I am using version 4.2.1. Please advise. Thank you

Anon

I suppossed that there are two files: File1.php and File2.php. According to your question, you have used $temp in File1.php, which contains the submit button.

And you want to display the value of $temp in File2.php.
Say, echo $temp;

File1.php

File2.php
<?
echo "This is the value of temp: ";
echo $temp;
?>

This is what I have tried to explain.

Tam

danny88

Ah yes, that is my exact problem. So, when I run it, the error message I get after processing File2.php is that $temp is undefined. Only when I do: $temp= $HTTP_GET_VARS["temp"]; does it work. Anything else I could have missed?

Anon

Hi Danny!

Using $HTTP_GET_VARS is one Solution.

You have two different possibilities to to do this:
1. You can put the form and the script in the same file: test.php.
<?
if(isset($done)){

echo "This is the value ou temp: $temp";

}
else {
?>
<form action = test.php method = post>
<input type = text name = temp>
<input type = submit name = done value = OK>
</form>
<?
}
?>

You can use two different files as described in my previous message.

By the way, where do you live?

Tam

Anon

Tamirat, I was helping Danny the other day. He's passing variables from a form. Normally, you can read those variables on the receiving page by simply declaring the variable with teh same name as the form variable's tag. for example

can be read on the receiving page by simply declaring

$firstName

It works on my version of php, but not on his. he has the most recent version of php. I'm assuming some flag in the php.ini isn't set correctly, however I'm not sure what it is. THe $HTTP_POST_VARS array was a temporarily solution to the problem, however it's not as convenient as the previous method described. Does anyone have an answer to this? Thanks!

danny88

Yeah, I installed version 4.2.1. I have found the flag in php.ini, and it works now. By default, variables are not registered as global, but if you want them to universally show up, just turn the flag on:

register_globals=On