Menu
An object is an instance of a class. Using the PHP unset() function, we can delete an object. So with the PHP unset() function, putting the object that we want to delete as the parameter to this function, we can delete this object.
Remove Property from an ObjectThe delete operator deletes both the value of the property and the property itself. After deletion, the property cannot be used before it is added back again. The delete operator is designed to be used on object properties. It has no effect on variables or functions.
The delete operator is used to remove these keys, more commonly known as object properties, one at a time. The delete operator does not directly free memory, and it differs from simply assigning the value of null or undefined to a property, in that the property itself is removed from the object.
unset($a->new_property);
This works for array elements, variables, and object attributes.
Example:
$a = new stdClass();
$a->new_property = 'foo';
var_export($a); // -> stdClass::__set_state(array('new_property' => 'foo'))
unset($a->new_property);
var_export($a); // -> stdClass::__set_state(array())
This also works specially if you are looping over an object.
unset($object[$key])
Newer versions of PHP throw fatal error Fatal error: Cannot use object of type Object as array as mentioned by @CXJ . In that case you can use brackets instead
unset($object->{$key})
This also works if you are looping over an object.
unset($object->$key);
No need to use brackets.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With