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Why are there periods in PHP?

Possible Duplicate:
What does the 'period' character (.) mean if used in the middle of a php string?

Why are the periods included in the code that follows?

require("mod/" . $modarrayout . "/bar.php");

Obviously, it's because the variable is between strings, but shouldn't the quotes have taken care of that? PHP

Solution

  • In PHP, the period is the concatenation operator. Putting the periods in tells PHP to concatenate "mod/" to $modarrayout and then concatenate the resulting string to "/bar.php". See page String Operators.