PHP foreach gives an error "undefined variable"

Question

I'm making my project with foreach.. This works on my old webhosting while in my new hosting it doesn't work..

It gives an error:

PHP Notice:  Undefined variable: generate_me

I don't know what is wrong in my code. Any body help?

$first = true;
foreach ($_POST as $key=>$value) {
$$key = $value;
    if ( $first ){
        $generate_me .= "?".$key."=".rawurlencode($$key);
        $first = false;
    }
    else{
        $generate_me .= "&".$key."=".rawurlencode($$key);
    }
}

1

init `$generate_me` before the loop – Nov 11 '14 at 10:21

score 1 · Answer 1 · answered Nov 11 '14 at 10:22

$generate_me = ''; // add this line and it should work with no error
$first = true;
foreach ($_POST as $key=>$value) {
$$key = $value;
    if ( $first ){
        $generate_me .= "?".$key."=".rawurlencode($$key);
        $first = false;
    }
    else{
        $generate_me .= "&".$key."=".rawurlencode($$key);
    }
}

PHP foreach gives an error "undefined variable"

1 Answers1