Confused by this array

Bob_PHP_Builder

Hi Fellow PHP builders,

i have a problem with an array and would appreciate any help.

I have Description. Description is passed though a $POST.
Description would contain for example 12.23 4. All i want is the last number. So in this case 4. Im not sure how to use an array to make it stop at a blank space or just read the last number (whether the number is 4 or 400)

Im trying something like below but if anyone can lead me on the right direction i will be very very grateful


if (description!="")
	{		
		var arrDescription = description.split(separator);

	for (var z = 0; z < description.length; z++)
	{
				if (arrDescription=" ")
				{
				newdescription=description;
				}			
	} 

}

Thank you Bob Php builder

bradgrafelman

Are you trying to do this in PHP or Javascript? Only reason I ask is because the code you posted looks like Javascript and nothing like PHP, so I was a bit confused...

Bob_PHP_Builder

Thank you Brad for the reply,

Im trying to do this in PHP. But i was looking at a bit of Javascript at the time (That confused me even more)

mjax

$newdescription = '';

if(preg_match('/^.* ([0-9]+)$/', $description, $matches)) {
   $newdescription = $matches[1];
}

echo "NEWDESCRIPTION: $newdescription";

Bob_PHP_Builder

Thank you very much, that was brilliant!!!!!!!!!!!!!!

I don't really understand how that works... something to do with asci?? how would i be able to just get the first number before the space?

mjax

If the number is always in the format you described (so <number><dot><number><space><number), you could use this to extract those parts:

$newdescription = '';

if(preg_match('/^([0-9]+)\.([0-9]+) ([0-9]+)$/', $description, $matches)) {
   $firstnumber_part1 = $matches[1];
   $firstnumber_part2 = $matches[2];
   $newdescription = $matches[3];
}

echo "FIRSTNUMBER PART1: $firstnumber_part1<br/>\n"; 
echo "FIRSTNUMBER PART2: $firstnumber_part2<br/>\n"; 
echo "NEWDESCRIPTION: $newdescription<br/>\n";

Bob_PHP_Builder

Thank you mjax. Thank you very much!