For loop, key on traversing string

[mruz]

It's not possible to move key during the loop on the string variable;

    public function filter(string str)
    {
        string output = "";
        char c;
        int i;

        for i, c in str {
            if c == '\n' {
                let i++;
            }
            let output .= c;
        }
    }

for (_0 = 0; _0 < Z_STRLEN_P(str); _0++) {
    i = _0; 
    c = ZEPHIR_STRING_OFFSET(str, _0);

is it possible to get access to _0 variable?

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[phalcon]

You might want to use a 'while' instead of a 'for'

[mruz]

I'm doing that now..

[jimthunderbird]

Yes, you can always convert your for loop into equivalent while loop. Check out my tool: https://github.com/jimthunderbird/php-to-c-extension#example-04

[mruz]

I think this is a bug. It should use i in the loop:

for (i = 0; i < Z_STRLEN_P(str); i++) {

or replace inside loop:

let i++;

to

_0++;

because now i++ is useless. @ovr @nkt what do you think?