On 22 September 2004 18:45, Stuart Felenstein wrote:
> Just to confirm,
> This is what I'm going to start with:
Yeah, I'd say you've pretty much got it, except...
> //base sql statement
> $sql = "select * from jobs where record_deleted = 'NO' ";
>
> if (isset($_POST['states'])){
Your SQL is going to need some sort of conjunction here, as your WHERE phrase already
has an initial condition in it. I'm guessing you'll want an AND, so:
$sql .= 'AND ';
> //check to see if the states is an array
> // multiple items or just one
> if (is_array($_POST['state']))
You've switched from $_POST['states'] to $_POST['state'] -- fix whichever is wrong ;)
> $sql .= "state='".implode("' OR state='",
> $_POST['state'])."'";
Given the conditions you want your WHERE phrase to test, you're going to need more
parentheses to force the ORs to be evaluated before the ANDs; this is where the IN
syntax, IMO, is more readable. So you want either:
$sql .= "(state='".implode("' OR state='",$_POST['state'])."')";
or:
$sql .= "state IN ('".implode("','",$_POST['state'])."')";
>
> }else{
> //$_POST['state'] is not an array
> $sql .= "state = '".$_POST['state']."' ";
> }//end if
>
> if (isset($_POST['job'])){
> if (isset($_POST['state'])){ $sql .= " AND "; }
And throughout this second block you've used a cut'n'paste of the first block without
altering ['state'] to ['job'] -- just the sort of oversight that can give you the
raving heebie-jeebies somewhere down the line if you fail to fix it! ;)
>
> //add in the AND if the state is set
> //check to see if the states is an array
> //multiple items or just one
>
> if (is_array($_POST['state']))
> $sql .= "state='".implode("' OR state='",
> $_POST['state'])."'";
> $sql .= ")";
> }else{
> $_POST['job'] is not an array
> $sql .= "job = '".$_POST['job']."' ";
> }
> //end if
Given the moderate complexity of this code, I'd strongly recommend echo-ing out $sql
immediately before it's used whilst you're in testing mode. When your query fails,
you'll already be one step ahead in working out what the problem is.
Cheers!
Mike
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