Select list that causes an input text box to appear

[Jeterdawg]

Hello, extreme newbie here...

I am trying to create a drop-down menu (select input type), and based on which of the options the user selects (Yes or No), an input text box appears for the user to enter their member number. Unless the user selects "Yes" from the menu, this box shouldn't appear.

I have tried two options -- using javascript within my php file (onSelect) and a simple if statement (with no javascript) basically saying if variableyes/no = "yes" echo the input box.

Here is the latter code:

<?php
    if ($PDGA_Is =="Yes")
    echo "<input type='text' size='10' name='$PDGA_No' value='$fields['PDGA_No']' />";
    ?>
 

This is bringing up a Parse error code ("syntax error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING"). Even if the syntax was correct, I doubt this is the right way to code this type of function. Is there a way for the select menu to trigger the text box without the user having to press a button or perform any other action than selecting "Yes" from the menu?

Thx
DH

[Atli]

Hi DH. Welcome to TSDN!

The problem is with the value of the input box you are echoing.
You can put normal variables straight into a double-quoted string without any problems, but array elements must be inside brackets.

# This is ok
$str = "hello my name is $name";
 
# This is not
$str = "Hello my name is $myArr['name']";
 
# It should be
$str = "Hello my name is {$myArr['name']}";
 
# or
$str = "Hello my name is $myArr[name]";
 

[Markus]

Hi DH. Welcome to TSDN!

The problem is with the value of the input box you are echoing.
You can put normal variables straight into a double-quoted string without any problems, but array elements must be inside brackets.

# This is ok
$str = "hello my name is $name";
 
# This is not
$str = "Hello my name is $myArr['name']";
 
# It should be
$str = "Hello my name is {$myArr['name']}";
 
# or
$str = "Hello my name is $myArr[name]";
 

Ahhhh.

That helps me a bunch :)