NYCPHP Meetup

[Nunez, Eddy]

Yeah no kidding .. I love this stuff!!
I've used them in sequence to test and update a conditional variable...
some actual code I wrie to set a string based on various database variables..

        $approval_status = ( $adt=$res[APPROVED] ) ? "Approved on $adt" : 'Unapproved' ;
        $approval_status = ( in_array($suffix,array('AN','SP')) ) ? 'N/A' : $approval_status ;
        $approval_status = ( $cdt=$res[COMPLETED] ) ? "Closed on $cdt" : $approval_status ;
        $approval_status = ( $cdt=$res[CANCELED] ) ? "Canceled on $cdt" : $approval_status ;

I realized in the above the sequence of the instructions is critical for the correct
result because the following statements will use the previous results on false condition.

FYI: texts refer to it as Trinary operator because it takes 3 operands, instead of
the more common 2 ops.

Cool stuff!

-----Original Message-----
From: talk-bounces at lists.nyphp.org
[mailto:talk-bounces at lists.nyphp.org]On Behalf Of Rahmin Pavlovic
Sent: Friday, September 30, 2005 12:47 PM
To: NYPHP Talk; Aaron Fischer
Subject: Re: [nycphp-talk] What are ? and :



On Fri, 30 Sep 2005 12:36 , Aaron Fischer <agfische at email.smith.edu> sent:

>I am in the process of reading through the PHundamentals article titled 
>"Functions for Storing Data Submitted From a Form and Displaying Data 
>from a Database" and have run into two symbols that I am unclear about 
>in the fix_magic_quotes function.
>http://www.nyphp.org/phundamentals/storingretrieving.php
>
>The symbols in question are ? and :
>
>The lines where they are used:
>
>1)  $argv = isset($_SERVER['argv']) ? $_SERVER['argv'] : NULL;
>

It's a conditional operator, and it's basically a simple if/else assignment.  In
this case, it's checking to see if there are any arguments -- if so, they get
assigned to $argv, if not, $argv is NULL.

A lot of people don't like conditional operators, but I use them a lot.



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