SplDoublyLinkedList::serialize()函数是PHP中的内置函数,用于序列化存储。
用法:
string SplDoublyLinkedList::serialize( void )
参数:该函数不接受任何参数。
返回值:此函数返回序列化的字符串。
以下示例程序旨在说明PHP中的SplDoublyLinkedList::serialize()函数:
示例1:
<?php
// Declare an empty SplDoublyLinkedList
$list = new SplDoublyLinkedList();
// Use SplDoublyLinkedList::push() function to
// add elements to the SplDoublyLinkedList
$list->push(1);
$list->push(2);
$list->push(3);
$list->push(8);
$list->push(5);
// Use serialize() function
$serialize = serialize($list);
echo $serialize;
?>
输出:
C:19:"SplDoublyLinkedList":29:{i:0;:i:1;:i:2;:i:3;:i:8;:i:5;}
示例2:
<?php
// Declare an empty SplDoublyLinkedList
$list = new SplDoublyLinkedList();
// Use SplDoublyLinkedList::add() function
// to add the element into the list
$list->add(0, "Welcome");
$list->add(1, "to");
$list->add(2, "GeeksforGeeks");
$list->add(3, "A");
$list->add(4, 'Computer');
$list->add(5, "Science");
$list->add(6, 'Portal');
// Use serialize() function
$serialize = serialize($list);
echo $serialize;
?>
输出:
C:19:"SplDoublyLinkedList":105:{i:0;:s:7:"Welcome";:s:2: "to";:s:13:"GeeksforGeeks";:s:1:"A";:s:8:"Computer"; :s:7:"Science";:s:6:"Portal";}
参考: https://www.php.net/manual/en/spldoublylinkedlist.serialize.php
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