php key
The key() function simply returns the key of the array element that's currently being pointed to by the internal pointer. It does not move the pointer in any way. ,返回值 ¶. key() 函数返回数组中内部指针指向的当前单元的键名。 但它不会移动指针。如果内部指针超过了元素列表尾部，或者数组是空的，key() 会返回 NULL 。 ,Definition and Usage. The key() function returns the element key from the current internal pointer position. This function returns FALSE on error. ,实例. 从当前内部指针位置返回元素键名： <?php $people = array("Bill", "Steve", "Mark", "David"); echo "键的当前位置是：" . key($people) ; ?> 运行实例 ... ,PHP key() 函数完整的PHP Array 参考手册实例从当前内部指针位置返回元素键名： <?php $people=array('Peter','Joe','Glenn','Cleveland'); echo 'The key from the ... ,The key() function simply returns the key of the array element that's currently being pointed to by the internal pointer. It does not move the pointer in any way. , [php]key — 從關聯陣列中取得鍵名範例<?php$people = array("Peter", "Joe", &qu.
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 php key 相關參考資料
key - Manual - PHP
The key() function simply returns the key of the array element that's currently being pointed to by the internal pointer. It does not move the pointer in any way. http://m.a.gg key - PHP.net
返回值 ¶. key() 函数返回数组中内部指针指向的当前单元的键名。 但它不会移动指针。如果内部指针超过了元素列表尾部，或者数组是空的，key() 会返回 NULL 。 https://www.php.net PHP key() Function - W3Schools
Definition and Usage. The key() function returns the element key from the current internal pointer position. This function returns FALSE on error. https://www.w3schools.com PHP key() 函数 - w3school 在线教程
实例. 从当前内部指针位置返回元素键名： <?php $people = array("Bill", "Steve", "Mark", "David"); echo "键的当前位置是：" . key($people) ; ?> 运行实例 ... https://www.w3school.com.cn PHP key() 函数| 菜鸟教程
PHP key() 函数完整的PHP Array 参考手册实例从当前内部指针位置返回元素键名： <?php $people=array('Peter','Joe','Glenn','Cleveland'); echo 'The key from the ... http://www.runoob.com PHP: key - Manual - PHP.net
The key() function simply returns the key of the array element that's currently being pointed to by the internal pointer. It does not move the pointer in any way. https://www.php.net [php]key — 從關聯陣列中取得鍵名@ 程式設計@筆記:: 痞客邦::
[php]key &mdash; 從關聯陣列中取得鍵名範例&lt;?php$people = array("Peter", "Joe", &qu. https://stockwfj3.pixnet.net |