Solution to the general situation when PHP cannot obtain SESSION information

1. Check php.ini

vim /etc/php.ini

Check these items:

session.save_handler = files // session 的存储类型；
session.auto_start = 1 //是否自启动
session.save_path = "/var/tmp"  //存储位置

2. Check whether /var/tmp has read and write permissions, if not:

chmod 777 -R /var/tmp

3. Check the php-fpm configuration file

vim /etc/php-fpm.d/www.conf

Check these items:

php_value[session.save_handler] = files
php_value[session.save_path]    = /var/tmp
php_value[soap.wsdl_cache_dir]  = /var/tmp

Change to the same path as php.ini

Four , restart php-fpm

/bin/systemctl restart php-fpm.service

php Chinese network learning topic:php session (including pictures, videos, cases)

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