Help to Parse a StdClass Object

[darkgr33n]

Hi

I've got a StdClass Object that I need to parse. I can parse specific elements, but not sure how to parse when there is more than one element with the same name.

example:

$foo = array (
  (object) array("Label" => "Street", "Line" => "Stanley Road"),
  (object) array("Label" => "Town", "Line" => "Manchester"),
  (object) array("Label" => "Number of Rules", "Line" => "2"),
  (object) array("Label" => "Rule", "Line" => "X014"),
  (object) array("Label" => "Rule Text", "Line" => "Rule text for X014"),
  (object) array("Label" => "Rule", "Line" => "X015"),
  (object) array("Label" => "Rule Text", "Line" => "Rule text for X015")
  );

/*

this is what $foo contains with print_r

Array ( 
[0] => stdClass Object ( 
  [Label] => Street 
  [Line] => Stanley Road ) 
[1] => stdClass Object ( 
  [Label] => Town 
  [Line] => Manchester ) 
[2] => stdClass Object ( 
  [Label] => Number of Rules 
  [Line] => 2 ) 
[3] => stdClass Object ( 
  [Label] => Rule 
  [Line] => X014 ) 
[4] => stdClass Object ( 
  [Label] => Rule Text 
  [Line] => Rule text for X014 ) 
[5] => stdClass Object ( 
  [Label] => Rule 
  [Line] => X015 ) 
[6] => stdClass Object ( 
  [Label] => Rule Text 
  [Line] => Rule text for X015 ) 
) 

*/

foreach($foo as $foo_data)
{
  $foo_list [$foo_data->Label] = $foo_data->Line;
}

echo ($foo_list["Street"] . "<br>");
echo ($foo_list["Town"] . "<br>");
echo ($foo_list["Number of Rules"] . "<br>");
echo ($foo_list["Rule"] . "<br>");
echo ($foo_list["Rule Text"] . "<br>");
echo ($foo_list["Rule"] . "<br>");
echo ($foo_list["Rule Text"] . "<br>");

/*

this is what is written with the echo's above - two sets of X015

Stanley Road
Manchester
2
X015
Rule text for X015
X015
Rule text for X015

*/

There is a "Number of Rules" element which will tell me how many Rule elements I'm expecting.

There could be anything between 0 and 10 rule/rule text element pairs, the example above having 2.

Any ideas how I would parse the entire array correctly [i'm going to be putting them into separate variables to use in a database, just using echo in the example.

I need to see:

Stanley Road
Manchester
2
X014
Rule text for X014
X015
Rule text for X015

Thanks

[sneakyimp]

For your example array, you could do this:

for ($item in $foo) {
  echo $item->Line .'<br>';
}

[darkgr33n]

sneakyimp;10934722 wrote:

For your example array, you could do this:

for ($item in $foo) {
  echo $item->Line .'<br>';
}

Thanks for your reply. I'm not sure I explained it very well. I actually need session variables, and of course, the problem comes when i have two of the same name.

I've come up with the following which does work, although I'm not sure its the most efficient, or cleanest way to go:

$foo = array (
	(object) array("Label" => "Street", "Line" => "Stanley Road"),
	(object) array("Label" => "Town", "Line" => "Manchester"),
	(object) array("Label" => "Number of Rules", "Line" => "2"),
	(object) array("Label" => "Rule", "Line" => "X014"),
	(object) array("Label" => "Rule Text", "Line" => "Rule text for X014"),
	(object) array("Label" => "Rule", "Line" => "X015"),
	(object) array("Label" => "Rule Text", "Line" => "Rule text for X015")
	);

foreach($foo as $bar){  	
	if ($bar->Label != 'Rule' AND $bar->Label != 'Rule Text') {		
		$_SESSION[$bar->Label] = $bar->Line;	
	} else {		
		switch ($bar->Label){			
			case 'Rule':			
			$suffix ++;			
			$rules[$bar->Label.$suffix] = $bar->Line;
			break;		

		case 'Rule Text':
		$rules[$bar->Label.$suffix] = $bar->Line;
		break;
		}	
	}
}

foreach ($rules as $key => $value){	$_SESSION[$key] = $value;}

which gives the following:

var_dump ($_SESSION);

array(7) { ["Street"]=> string(12) "Stanley Road"["Town"]=> string(10) "Manchester" ["Number of Rules"]=> string(1) "2" ["Rule1"]=> string(4) "X014" ["Rule Text1"]=> string(18) "Rule text for X014"["Rule2"]=> string(4) "X015" ["Rule Text2"]=> string(18) "Rule text for X015" }

which is pretty much what I was after, but open to any cleaner suggestions

[sneakyimp]

YOu could do a foreach $foo as $key => $bar and base the names of your keys in $_SESSION not just on Label or Line but also on the $key value.

[Weedpacket]

I'd recommend not doing things like "$rules[$bar->Label.$suffix]" because it means that you end up having to take it all apart again. The structure I'd look at using would be:

$rules = array();
$line_id = null;
foreach($foo as $bar)
{
	switch($bar->Label)
	{
	case 'Rule':
		$line_id = $bar->Line;
		break;
	case 'Rule Text':
		if(empty($line_id))
		{
			// Rule Text without a previous Rule
		}
		$rules['Rule'][$line_id] = $bar->Line;
	case 'Number of Rules':
		$count = $bar->Line;
		break;
	default:
		$rules[$bar->Label] = $bar->Line;
	}
}
if($count != count($rules['Rule'])
{
	// Number of Rules doesn't match number of Rules.
}

$_SESSION = $rules + $_SESSION;

print_r($rules) to see the format.
(Note: I wrote that but neither ran nor tested it.)