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

Concatenate to a string.

e.g:

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

The assignment operator is a shorthand for

$a .= 'some string';

 

is the equivalent of

$a = $a . 'somestring';

 

See here for more information

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

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