PHP extract values from array

Question

I'm trying to extract values from an array within an array. The code I have so far looks like this:

$values = $request->request->get('form');
$statusArray = array();
foreach ($values->status as $state) {
    array_push($statusArray, $state);
}

The result of doing a var_dump on the $values field is this:

array (size=2)   
   'status' => 
      array (size=2)
        0 => string 'New' (length=9)  
        1 => string 'Old' (length=9)    
   'apply' => string '' (length=0)

When running the above I get an error basically saying 'status' isn't an object. Can anyone tell me how I can extract the values of the array within 'status'??

a var_dump($values); would be helpful

Serty Oan
– Serty Oan

2014-08-04 09:52:04 +00:00
Commented Aug 4, 2014 at 9:52 — Serty Oan
– Serty Oan, Commented Aug 4, 2014 at 9:52

maloney · Accepted Answer · 2014-08-04 09:53:27Z

4

-> it's the notation to access object values, for arrays you have to use ['key']:

foreach ($values['status'] as $state) {
  array_push($statusArray, $state);
}

Object example:

class Foo {
  $bar = 'Bar';
}

$foo = new Foo();
echo $foo->bar // prints "bar"

edited Aug 4, 2014 at 9:53

maloney

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answered Aug 4, 2014 at 9:48

Ende Neu

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6 Comments

Tibor B. Over a year ago

So what's wrong with using ->? His get('form') function can still return an object, and he can use it in his loop: foreach ($values->status as $state)

Ende Neu Over a year ago

Actually if you see the var_dump it says that get('form')returns an array, if it would have returned an object you could have used the -> notation like you suggested otherwise this kind of notation is not defined for arrays and you will incur in exceptions.

Tibor B. Over a year ago

That's true. Sorry, my bad.

Ende Neu Over a year ago

If you don't know what kind of variable you are getting back, you can use is_array or is_object to determine which kind of access operator to use.

maloney Over a year ago

Thanks for the responses. Is it possible to do a null check on the array? For example, status may not always exist within the array. I tried to do something like this: 'if ($values['status'] != null){' but just get a Undefined index: status error

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