For loop error

Question

I try this for (for loop)
For($q = 15;$q < 20; $q++)
{ echo $q "<br/>" ; }

And it shows this error

Parse error: syntax error, unexpected ''
'' (T_CONSTANT_ENCAPSED_STRING), expecting ',' or ';' in ..\Playground\ PHP Parse error: syntax error, unexpected ''
'' (T_CONSTANT_ENCAPSED_STRING), expecting ',' or ';' in ..\Playground\
Can someone help me? Plz

Answer 1

You must add . between $q and br.
ex: echo $q . "<br/>";

Answer 2

thnx AtoMx very much

Answer 3

but why sometimes ,some code work without these . ,but why i need these . here??🤔🤔🤔🤔

Answer 4

In this case the point is used to concatenate strings.
You can use echo without point if you print only one variable or only one string.