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Quick question regarding the printf function.

 

I understand that printf will print a formatted string for example:

 

$mystring = printf('%.1f', 1.2); //Will output 1.2

 

However I don't understand why if I then print $mystring the result is 3

 

Example:

$mystring = printf('%.1f', 1.2); //prints 1.2
echo "<br><br>";
echo $mystring  //Prints 3

 

Please could someone explain how this works?

 

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