PHP 教程
PHP end() 函數(shù)
實例
輸出數(shù)組中的當前元素和最后一個元素的值：
<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
echo current($people) . "<br>";
echo end($people);
?>
$people = array("Peter", "Joe", "Glenn", "Cleveland");
echo current($people) . "<br>";
echo end($people);
?>
運行代碼 ?
定義和用法
end() 函數(shù)將內(nèi)部指針指向數(shù)組中的最后一個元素，并輸出。
相關的方法：
- current() - 返回數(shù)組中的當前元素的值。
- next() - 將內(nèi)部指針指向數(shù)組中的下一個元素，并輸出。
- prev() - 將內(nèi)部指針指向數(shù)組中的上一個元素，并輸出。
- reset() - 將內(nèi)部指針指向數(shù)組中的第一個元素，并輸出。
- each() - 返回當前元素的鍵名和鍵值，并將內(nèi)部指針向前移動。
語法
end(array)
| 參數(shù) | 描述 |
|---|---|
| array | 必需。規(guī)定要使用的數(shù)組。 |
技術細節(jié)
| 返回值： | 如果成功則返回數(shù)組中最后一個元素的值，如果數(shù)組為空則返回 FALSE。 |
|---|---|
| PHP 版本： | 4+ |
更多實例
實例 1
所有相關方法的演示：
<?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
?>
$people = array("Peter", "Joe", "Glenn", "Cleveland");
echo current($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
?>
運行代碼 ?
完整的 PHP Array 參考手冊其他擴展