PHP reset() function
Example
Output the value of the current element and the next element in the array, and then reset the internal pointer to the first element in the array:
<?php $people = array("Bill", "Steve", "Mark", "David"); echo current($people) . "<br>"; echo next($people) . "<br>"; echo reset($people); ?>
Definition and usage
The reset() function points the internal pointer to the first element in the array and outputs.
Related methods:
- current() - Returns the value of the current element in the array
- end() - Points the internal pointer to the last element in the array and outputs
- next() - Points the internal pointer to the next element in the array and outputs
- prev() - Points the internal pointer to the previous element in the array and outputs
- each() - Returns the key name and key value of the current element, and moves the internal pointer forward
Syntax
reset(array)
Parameter | Description |
---|---|
array | Required. Specifies the array to be used. |
Technical details
Return value: | If successful, it returns the value of the first element in the array, or FALSE if the array is empty. |
PHP Version: | 4+ |
More Examples
Example 1
Demonstrate all related methods:
<?php $people = array("Bill", "Steve", "Mark", "David"); echo current($people) . "<br>"; // The current element is Bill echo next($people) . "<br>"; // Bill's next element is Steve echo current($people) . "<br>"; // The current element is now Steve echo prev($people) . "<br>"; // Steve's previous element is Bill echo end($people) . "<br>"; // The last element is David echo prev($people) . "<br>"; // The element before David is Mark echo current($people) . "<br>"; // The current element is Mark echo reset($people) . "<br>"; // Moves the internal pointer to the first element of the array, which is Bill echo next($people) . "<br>"; // Bill's next element is Steve print_r (each($people)); // Returns the key name and value of the current element (currently Steve), and moves the internal pointer forward ?>