Calling Functions

[tru2dalimit]

Hi im new to PHP, and i wrote a piece of code that contains a drop down menu with three items and i wanted to retain the item selected when i come back. I used a session variable to retain the variable and created a fuction:

if(isset($HTTP_POST_VARS['Salutation']))
{
$Salutation = $HTTP_SESSION_VARS['Salutation'];
}

function match($str)
{
if($str == $Salutation)
{
return = 'SELECTED';
}
return '';
}

Now when i call the function within my form it doesn't read it:
<form action="samp.php" method="POST" name="application" id="application">
<SELECT NAME="Salutation">
<Option Value="Mr." match('Mr.') > Mr.</Option>
<Option Value="Ms." match('Ms.') > Ms.</Option>
<Option Value="Mrs." match('Mrs.') > Mrs.</Option>
</SELECT>

Any help is greatly appreciated
Thanks

 

[sleipnir214]

I see several things wrong here.

PHP has to modes of operation, HTML-throughput mode and parse mode. Parse mode occurs only between <?php and ?> tags. Throughput mode occurs everywhere else.

It appears you are trying to call a function from within throughput mode.


Even if you were in parse mode, your code will not work. PHP cannot call a function from withing a string literal.

I recommend that you do something like:

<?php
print '
<form action="samp.php" method="POST" name="application" id="application">
	<SELECT NAME="Salutation">
		<Option Value="Mr."[red]' .[/red] match('Mr.')[red]. '[/red]> Mr.</Option>
		<Option Value="Ms."[red]' .[/red] match('Ms.')[red]. '[/red]> Ms.</Option>
		<Option Value="Mrs."[red]' .[/red] match('Mrs.')[red]. '[/red]> Mrs.</Option>
	</SELECT>
';

This example outputs your HTML from within a print statement. The string to be printed is a concatenation of string literals and function returns.



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[tru2dalimit]

Thanks
Just wondering is there any possible i can retain the item selected in another way

 

[sleipnir214]

I don't understand.



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[tru2dalimit]

For example i select Mrs. and i hit submit and i go to another page which displays my selection, but now i want to change it, so i go back. What i want is to keep the drop down menu to select the item that i selected before (Mrs.), not the first item in the menu(Mr.). Like using Beans to remember what i selected.
Thanks

 

[sleipnir214]

Like you said in your initial post, use session variables. Set a session variable that records that information and have your function, instead of accepting an input parameter against which to check whether to output "SELECTED", check against that session variable.



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