[garym]

Hello,

I've got what is probably a very simple question but, it has stumped me!

Could someone please explain to me what .= means when coding php?

Many thanks,

Gary

[Mythriel]

Concatenate to a string.
e.g:

$var = "This is a "; 
$var .= "test demonstration";
echo $var; //prints This is a test demonstration  

[Jay Gilford]

The assignment operator is a shorthand for
$a .= 'some string';

is the equivalent of
$a = $a . 'somestring';

See here for more information

[garym]

Thanks very much. So it's kind of like adding a bit more onto the end of the string then?

[Jay Gilford]

Yes for a string using the . before the = will do that, but there are others you will find useful

$a += 50;
Adds 50 to $a
Equivalent to
$a = $a + 50;

$a -= 50;
subtracts 50 from $a
Equivalent to
$a = $a - 50;

It's really just a useful shorthand

You can do the same with all of the other operators, like *, / and % too