expecting function to return an html table, it returns integer 0 instead

[johnmerlino]

Hey all,

 

this function returns 0, rather than a string consisting of html tags:

function cost_per_distance_table($distance,$divisor){
	$str = "";
	$str += "<table>";
	$str += "<tr>";
	$str += "<td>Distance</td>";
	$str += "<td>Cost</td>";
	$str += "</tr>";
	while($distance <= 250){ 
		$str += "<tr>";
		$str += "<td>" . (string)$distance . "</td>\n";
		$str += "<td>" . (string)($distance/$divisor) . "</td>\n";
		$str += "</tr>";
		$distance += 50;
	}
	$str += "</table>";
	return $str;
}
      
      echo cost_per_distance_table(50,10); 

 

Not sure why. Thanks for response.

[cunoodle2]

as far as I know strings use ".=" to add to the end.  "+=" is a math operation.

[johnmerlino]

as far as I know strings use ".=" to add to the end.  "+=" is a math operation.

 

Your right. Im getting programming languages mixed up

[zavaboy]

It's a common mistake if you're used to JavaScript or the like. (Even I still do it and I've been coding PHP for almost 10 years now.)

[phpSensei]

Best programming habit you can possible inherit from any language is probably indenting your code from Python.

 

Tip of the day lol.