connecting string and calculation in pnp

Question

<h1>Score and Prize</h1>
<table border="1">
<tr>
<th bgcolor="skyblue">SCORE</th>
<th bgcolor="skyblue">PRIZE</th>
</tr>
<?php
$num = 1;
while ($num <= 5){
echo "<tr>
<td>".$num * 50 . "</td>
<td>". $num * 1000 . "</td>
</tr>";
$num++;
}
?>

This is a loop to make a table. In the php code, I found out that

<td>".$num * 50 . "</td>

This is working, but

<td>".$num * 50. "</td>

This is not working. And only difference is a space between number '50' and '.'. Why is this happening?

Please consider properly indenting your code before posting it in Stack Overflow, it helps people who might answer your question to find the problem faster. — Benjamin Gruenbaum, Jun 02 '14 at 23:52

score 6 · Answer 1 · answered Jun 02 '14 at 23:51

6

php is parsing the 50. as a floating point number, and so it no longer sees the '.' as a string concatenation operator.

answered Jun 02 '14 at 23:51

cnick

332
2
11

1

This is one of the reasons that I use `,` instead of `.` for string concatenation when using `echo`, also, `,` doesn't break the interpreter like `.` does. – Ohgodwhy Jun 02 '14 at 23:58
@ohgodwhy you can use a commar for concatenation? – Daryl Gill Jun 03 '14 at 00:48

connecting string and calculation in pnp

1 Answers1