Question

I use sprintf() on my program to output some tabs and newlines. I noticed a part of my program not working properly.

As I inspected the part that isn’t working, I noticed that I used a single quote ' instead of a doublequote " and the program actually outputs a \t instead of a inivisible tab space.

I thought the two are similar and the reason for having two delimeters for php is for us to be able to insert single or doublequote in a string or echo them without inserting escape characters.

Would there be a difference in assigning variables aside from the one I discovered

$a = "qq";
$b = 'qq';

Would they be stored in the computer’s memory in a different manner?

Answer 1

you can refer to the manual that specifies that single quotes in php consider most escape sequences as litterals, contrary ot double quotes:
http://php.net/manual/en/language.types.string.php