prev
PHP 4, PHP 5, PHP 7, PHP 8
prev - Rewind the internal array pointer
Manual
prev(
array|objectarray ): mixed
Rewind the internal array pointer.
prev behaves just like next, except it rewinds the internal array pointer one place instead of advancing it.
Parameters
- array
-
The input array.
Return Values
Returns the array value in the previous place that's pointed to by the internal array pointer, or false if there are no more elements.
Warning:
This function may return Boolean false, but may also return a non-Boolean value which evaluates to false. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.
Notes
Note:
The beginning of an array is indistinguishable from a bool false element. To make the distinction, check that the key of the prev element is not null.
Changelog
| Version | Description |
| 8.1.0 | Calling this function on objects is deprecated. Either use get_mangled_object_vars on the object first, or use ArrayIterator. |