Display the values of the current, next, and previous elements in the array.
| <?php $people = array(“Peter”, “Joe”, “Glenn”, “Cleveland”); echo current($people) . “<br>”; echo next($people) . “<br>”; echo prev($people); ?> |
The prev() function moves the internal pointer to the previous element in the array and outputs its value.
Related methods:
next() – moves the internal pointer to the next element in the array and outputs its valuecurrent() – returns the value of the current element in the arrayend() – moves the internal pointer to the last element in the array and outputs its valuereset() – moves the internal pointer to the first element of the arrayeach() – returns the key and value of the current element and advances the internal pointer| prev(array) |
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Parameter |
Description |
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array |
Required. Indicates the array to be used. |
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Return Value: |
Returns the value of the previous element in the array on success, or |
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PHP Version: |
4+ |
An example showcasing all related methods:
| <?php $people = array(“Peter”, “Joe”, “Glenn”, “Cleveland”); echo current($people) . “<br>”; // The current element is Peter echo next($people) . “<br>”; // The next element of Peter is Joe echo current($people) . “<br>”; // Now the current element is Joe echo prev($people) . “<br>”; // The previous element of Joe is Peter echo end($people) . “<br>”; // The last element is Cleveland echo prev($people) . “<br>”; // The previous element of Cleveland is Glenn echo current($people) . “<br>”; // Now the current element is Glenn echo reset($people) . “<br>”; // Moves the internal pointer to the first element of the array, which is Peter echo next($people) . “<br>”; // The next element of Peter is Joe print_r (each($people)); // Returns the key and value of the current element (now Joe), and moves the internal pointer forward ?> |