为foreach提供了无效的参数

Question

I have got this warning, have someone an idea:

warning: Invalid argument supplied for foreach() in C:\\xampp\\htdocs\\testplanning\\modules\\planning\\planning.module on line 425.

The code where he the fall is:

foreach($stap3[2] as $key => $value) {
    $waardeSoortStage[$key] = $value;
}

Answer 1

变量$stap3[2]可能不是数组。

Answer 2

I think you wanted to do so:

foreach($stap3 as $key => $value) {
    $waardeSoortStage[$key] = $value;
}

because I think $stap3 is your array, $stab3[2] might only be one member of it.

Answer 3

$stap3[2] is not an array or an empty array.

You can check $stap3[2] with is_array($stap3[2]) If is really array it returns true.

Also you can debug it with var_dump($stap3[2])