Challenge for ZEND PHP5 Certification - 033

[hinom 5]

Exercise 33

 

What will be the output of the following code?

 

echo 12.6;

A. 12.6

B. 126

C. 18

D. Error: You cannot add integers through the concatenation operator(.)

[hinom 5]

Answer: A

 

Explanation

 

Don't have space before or after concatenation simbol, therefore, literal value will be printed

 

simple test

<?php

echo 12.6;

?>

<?php

echo 12. 6;

?>

<?php

echo 12 .6;

?>

 

<?php

echo 12 . 6;

?>

http://php.net/language.operators.string