Using define inside of a function

Question

I am trying to define a constant inside of a function but I keep getting a syntax error. If I define this at the top of the file outside of the function and class it works define('SALT_LENGTH', 9); As soon as I put this inside the class or function I get syntax error I have also tried const SALT_LENGTH = 9; but it is the same issue. I have been searching around for answers but I am not finding anything.

class userFunctions{

//Generate an encrypted password method
    public function generateHash($password, $salt = null)

{
    if ($salt === null) {
        $salt = substr(md5(uniqid(rand(), true)), 0, SALT_LENGTH);
    } else {
        $salt = substr($salt, 0, SALT_LENGTH);
    }
        return $salt . sha1($salt . $password);
}
    //End of generate encrypted password method
}

define is a function you can't just call it while you're not inside a function scope. — Itay
– Itay, Commented Sep 14, 2013 at 2:00

anoop · Accepted Answer · 2013-09-14 02:20:52Z

1

You got to use the 'self' keyword.

Like this,

class userFunctions{

const SALT_LENGTH = 5; // define constant 


public function generateHash($password, $salt = null)

{

    if ($salt === null) {
        $salt = substr(md5(uniqid(rand(), true)), 0, self::SALT_LENGTH);
    } else {
        $salt = substr($salt, 0, self::SALT_LENGTH);
    }
    return $salt . sha1($salt . $password);
}

}

answered Sep 14, 2013 at 2:20

anoop

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Comments

Iqbal Malik · Accepted Answer · 2013-09-14 02:24:13Z

0

Please use constructor in your class. Change any value you prefer for SALT_LENGTH. I chose 50. Below is the code.

 function __construct() {
        define('SALT_LENGTH','500');
 }

answered Sep 14, 2013 at 2:24

Iqbal Malik

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