php中session定期自动清理的方法

[root@hz scripts]# grep "session.save_path = " /usr/local/php/lib/php.ini ;   session.save_path = "N;/path" ;   session.save_path = "N;MODE;/path" ;session.save_path = "/tmp" session.save_path = "2;/tmp/session" [root@hz ~]# cat /byrd/script/Cleartmpsen.sh #!/bin/bash # Version:1.0 # Author:Byrd # Site:www.t4x.org # Contact:root#t4x.org # This is script will clear php session before 3 hours. i="0 1 2 3 4 5 6 7 8 9 a b c d e f" for byrd in $i; do   for x in $i;   do     mkdir -p /tmp/session/$byrd/$x;   done; done chown -R bywww:bywww /tmp/session chmod -R 1777 /tmp/session find /tmp/session -amin +180 -exec rm -rf {} ＼; if [ `grep 'session.save_path =' /usr/local/php/lib/php.ini | wc -l` -eq 3 ];then   sed -i 's#;session.save_path = "/tmp"#;session.save_path = "/tmp"＼nsession.save_path = "2;/tmp/session"#g' /usr/local/php/lib/php.ini else   exit 1 fi 定时任务： [root@hz scripts]# echo '#This is a config php session BY:BYRD AT:2015-11-12' >>/var/spool/cron/root [root@hz scripts]# echo '0 3 * * 0 /bin/bash /byrd/scripts/spehspsion.sh >/dev/null 2>&1' >>/var/spool/cron/root