CODEWITHSUNDEEP
phpnewline
ehime
ehime

Reputation: 8375

Half multiple newlines

This is kind of a silly question and really just for personal interests more than anything, but how would you go about halving multiple newlines?

So lets say I have a series of two \r\n (carriage return/newlines) as a constant, so

Class FOO
{
    Const DELIM = "\r\n\r\n";

    private fullDelim, halfDelim = false;

    public function __construct()
    {
        $this->fullDelim = self::DELIM;
        $this->halfDelim = substr(self::DELIM, -(count(self::DELIM)/2); // or something ??
    }
}

Would that be a sane thing to do? can you even substr on newlines? I'm very curious on how you'd go about this in a "sane" way?

Upvotes: 0

Views: 37

Answers (2)

Barmar
Barmar

Reputation: 780869

Use strlen() to get the length of a string, not count().

$this->halfDelim = substr(self::DELIM, -(strlen(self::DELIM)/2);

Upvotes: 1

ehime
ehime

Reputation: 8375

Honestly this works, I'm actually a bit surprised....

$half substr(self::DELIM, -(preg_match_all ('/\r\n/', self::DELIM)/2));

Test

echo preg_match_all ('/\r\n/', self::DELIM);  // 2
echo count(substr(self::DELIM, -(preg_match_all ('/\r\n/', self::DELIM)/2))); // 1

Upvotes: 0

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