No Force Object To String

PHP automatically converts numeric strings to integers when used as array indices, so ‘123’ becomes 123 (the integer). However, PHP doesn’t perform similar conversions for objects, when they are used as array keys. Instead, it immediately throws a fatal Illegal offset type error because objects are not automatically converted to valid array keys.

See Also

• Arrays (PHP manual)

• Cast to object as key [Try me]

PHP Error Messages

• Cannot access offset of type A on array

PHP Features

• string

• object