CakePHP: Undefined variable, but it is defined

Question

I am using CakePHP 2.4.4. In the Controller I am setting an array :

$bla = array();
$bla[] = 'phone';
$bla[] = 'id';
$this->set(compact('bla'));

In the view when I try to debug this $bla array it debugs well. But when I try to check if one string is in this array it gives me the Undefined variable: bla error. The whole view's code:

     array_walk_recursive($data, function(&$val, $key) {
        if (is_numeric($val) AND in_array($key, $bla)) { //this line gives me error: Undefined variable $bla, but it is actually defined
            if (ctype_digit($val)) {
                $val= (int) $val;
            } else {
                $val = (float) $val;
            }
        }
    });

Anonymous function has no access to $bla

u_mulder
– u_mulder

2017-03-30 11:29:36 +00:00
Commented Mar 30, 2017 at 11:29 — u_mulder
– u_mulder, Commented Mar 30, 2017 at 11:29

u_mulder · Accepted Answer · 2017-04-01 16:53:04Z

2

Anonymous function you've created in array_walk_recursive has no access to $bla and any other outer variables. You should explicitly pass this variable to this function with use:

array_walk_recursive($data, function(&$val, $key) use ($bla) {
    if (is_numeric($val) AND in_array($key, $bla)) {
        if (ctype_digit($val)) {
            $val= (int) $val;
        } else {
            $val = (float) $val;
        }
    }
});

edited Apr 1, 2017 at 16:53

answered Mar 30, 2017 at 11:31

u_mulder

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1 Comment

handkock Over a year ago

Thank you for very fast answer. You are very right!

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