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phpvariablesgloballang

How to concatenate a string and a variable into a constant name?

I have a constant like define("EMPLOYEE_NAME_ID","employee"); and a variable $code = EMPLOYEE;

now i want to print like below

<?php echo $code.NAME_ID; ?>

But this prints only "EMPLOYEE_NAME_ID" and i want to print "employee". Then how to print this. The all over means is that i want to retriew variables from lang file.

Solution

  • A unquote string in PHP will be parsed as constant,
    and if the constant is undefined,
    it will treat as the string (instead of a variable)

    If you dealing with constant, you can make use of constant function :-

    echo constant("{$code}_NAME_ID");

    However, use of this function will return warning message if the constant is not defined.
    There are other option like parse_ini_file you can take a look,
    this is ideal for handling large amount of setting / configuration