Formatting zero results

[garfieldsevilla]

I have just written my first php script and now have a dynamic table updated from MySql. The table contains a sequence of numbers which are sometimes zero.

Is there a neat way to ECHO a space or – character when there is a 0 to make the table look more elegant? The best I can do is with an IF ELSE construct:

//Present code
      <td><?php echo $row_Recordset1['Price02']; ?></td>
..
      <td><?php echo $row_Recordset1['Price10']; ?></td>

//best I can do
      <td><?php if ($row_Recordset1['Price02'] == 0) {echo “-“;} else {echo $row_Recordset1['Price05']; }?></td>
..
      <td><?php if ($row_Recordset1['Price10'] == 0) {echo “-“;} else {echo $row_Recordset1['Price05']; }?></td>

Thanks

[zorgi]

I guess you could do:

echo($row_Recordset1['Price02'])?($row_Recordset1['Price05']):("-");

Look at the Comparison Operators and scroll down to Ternary Operators

[garfieldsevilla]

hi, that's neat, but I could not get this to work:

<td><?php echo empty($row_Recordset1['Price02']))? '-'; ?></td>
<td><?php echo empty($row_Recordset1['Price03']))? '-'; ?></td>

[Dormilich]

because you didn’t use the ternary operator.

[garfieldsevilla]

I understood the first '?' to be the 'ternary operator'
Sorry, this is my 3rd day with PHP.. thanks!

[Dormilich]

then where does the "ternary" come from? btw. it has been exactly explained in the given link.

the ternary operator:
expression ? expression(true ) : expression(fals e);

as of PHP 5.3 you could also use
expression ?: expression(fals e);

[garfieldsevilla]

Hi dormilich, I see I'm lacking a semicolon. It's confusing, as ternary suggests 3 but several examples only have 2 parts.. anyway, I added the semicolons and here are the equivalent statements:

<td><?php echo empty($row_Recordset1['P02']) ? " " : $row_Recordset1['P02']; ?></td>
<td><?php if ($row_Recordset1['P03'] == 0) {echo " ";} else {echo $row_Recordset1['P03'];} ?></td>

The 'ternary' version is rather cool!