session_id什么意思
“session_id”是php中的函数,是用于取得或者重新配置目前存放Session的代号,其语法是“string session_id(string [id]);”。
session_id什么意思?
session_id()
session_id() 存取目前 session 代号。
语法: string session_id(string [id]);
本函数可取得或者重新配置目前存放 Session 的代号。若无参数 id 则表示只有取得目前 Session 的代号,加上参数则表示将 Session 代号设成新指定的 id。输入及返回均为字符串。
输出 session_id()
<?php session_start(); echo session_id(); // 输出 dqr58dnuqj2gufvg4o3tmjb9v4 ?>
设置 session_id()
<?php session_id("NowaMagic"); session_start(); echo session_id(); // 输出 NowaMagic ?>

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