


I am using the new version of Tp 3.2.3. I have multiple methods in the same controller. I wrote a session in method 1. Why can't I read it in method 2? Please explain...
The code is very simple. I just wrote a controller and inherited Controller. Then there are 2 methods written in it, the first method writes a session. The second method reads the session. The syntax is session("kkk",999); The other is to directly echo session("kkk"); The result is that the session cannot be read out.
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I am using the new version of Tp 3.2.3. I have multiple methods in the same controller. I wrote a session in method 1. Why can't I read it in method 2? Please explain...
The code is very simple. I just wrote a controller and inherited Controller. Then there are 2 methods written in it, the first method writes a session. The second method reads the session. The syntax is session("kkk",999); The other is to directly echo session("kkk"); The result is that the session cannot be read out.
ThinkPHP
When the application is initialized, in the ThinkPHP\Library\Think\App.class.php
class, if the current running environment is not cli
, it will automatically register session_start
from the configuration file,
The SESSION_AUTO_START
set in the default configuration file ThinkPHP\Conf\convention.php
is TRUE
, that is, the session will be automatically enabled by default. Please check whether your configuration file covers this configuration item, thinkphp
When loading the configuration file, user-defined ones will overwrite the default ones,
The default user-defined configuration file Application\Common\Conf\config.php
, check whether SESSION_AUTO_START
is set to false or 0
If you don’t want to modify the configuration file, you only need to call session_start before starting the method
<?php namespace Home\Controller; use Think\Controller; class IndexController extends Controller { public function index(){ $this->show('.........'); } public function test() { //若配置文件SESSION_AUTO_START为false, 则调用session方法时都学要手动开启session session_start(); session('xxxxx', 'wodelaojia'); } public function test2() { session_start(); echo session('xxxxx'); } }
Configure SESSION_AUTO_START
to TRUE
or when using session
session_start

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。


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