在zf2中为foreach（）提供的参数无效

Question

I am getting this error in PHP / ZF2:

 Warning: Invalid argument supplied for foreach()

But I can render the form elements. Why I am getting this error in Zend framework 2 and How to resolve this error?

Answer 1

probably you are trying to loop throught a non-object or non-array variable

in case $foo should be an object:

if(is_object($foo)){
   foreach($foo as $element){
       // ...
   }
}

in case $foo should be an array:

if(is_array($foo)){
   foreach($foo as $element){
       // ...
   }
}

hope this helps