在PHP中，如何创建和添加对象？

Question

Just so you know I'm working in WordPress. I have an array and want to create an object with only certain values from that array.

Then I have another separate array, I'd like to add to this new object. I might be over complicating things. If I am, please let me know.

Here's what I have so far:

$custom = get_post_custom(); //Gets array of values
$picObject = (object)$custom; //Creates object
$picCount = $custom['picturecount'][0];
for ($x = 1; $x <= $picCount; $x++) {
     // This assembles a URL that I want to add to the array. 
     $finalUrl = $picUrl.$gsi.'&picfilename='.$vin.'_00'.$x.'.jpg';
}

Let me know if you need anything else. Thanks in advance everyone!

Answer 1

If you want to create an object with only some values from your array, you shouldn't cast the array because you'll end up with all of its values. Instead, create a new object and set the values you want:

$array = array(
    'foo' => 'bar',
    'bar' => 'baz'
);

$object = new stdClass();

$object->bar = $array['bar'];
$object->something_else = 'w00t!';

Casting an array to object (i.e. (object)$array) will get you the same type of object, so you can still use $object->new_property = 'foo'; to add stuff to it.