打印变量和文本没有空格？

Question

I have the following php code:

$mem=10;
echo "Memory: $mem MB<br>";

Which prints out:

Memory: 10 MB

I would like it to print out:

Memory: 10MB

I can't do this:

echo "Memory: $memMB<br>";

Any ideas how I can do this?

Answer 1

Using concatenation is an easy way:

echo "Memory: ".$mem."MB<br>";