PHP Fatal error: Call to undefined function mb strlen()

php-mbstring 설치
Fatal error: Call to undefined function mb strlen()

1 문제 상황[ | ]

Fatal error: Call to undefined function mb_strlen()

Fatal error: Call to undefined function mb_convert_encoding()

[root@localhost ~]# php -r 'mb_strlen();'
PHP Fatal error:  Call to undefined function mb_strlen() in Command line code on line 1

→ mb_strlen 함수를 알아보지 못한다. php-mbstring이 설치되지 않았나 보다.

2 확인[ | ]

[root@zetawiki ~]# rpm -qa php-mbstring

→ 설치되지 않음

[root@zetawiki ~]# yum info php-mbstring | grep Repo
Repo        : Daum

→ yum으로 설치가능 (저장소는 Daum.repo 참고)

3 설치[ | ]

[root@zetawiki ~]# yum install php-mbstring -y
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package php-mbstring.x86_64 0:5.3.3-3.el6_2.8 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

==================================================================================================================
 Package                      Arch                   Version                           Repository            Size
==================================================================================================================
Installing:
 php-mbstring                 x86_64                 5.3.3-3.el6_2.8                   Daum                 453 k

Transaction Summary
==================================================================================================================
Install       1 Package(s)

Total download size: 453 k
Installed size: 2.1 M
Downloading Packages:
php-mbstring-5.3.3-3.el6_2.8.x86_64.rpm                                                    | 453 kB     00:00     
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : php-mbstring-5.3.3-3.el6_2.8.x86_64                                                            1/1 
  Verifying  : php-mbstring-5.3.3-3.el6_2.8.x86_64                                                            1/1 

Installed:
  php-mbstring.x86_64 0:5.3.3-3.el6_2.8                                                                           

Complete!

4 재확인[ | ]

[root@zetawiki ~]# rpm -qa php-mbstring
php-mbstring-5.3.3-3.el6_2.8.x86_64

→ 패키지 설치됨

[root@zetawiki ~]# php -r 'mb_strlen();'
PHP Warning:  mb_strlen() expects at least 1 parameter, 0 given in Command line code on line 1

Warning: mb_strlen() expects at least 1 parameter, 0 given in Command line code on line 1

→ mb_strlen 함수의 인수 개수가 잘못되었다고 함. 이제 PHP에서 mb_strlen 함수를 사용할 수 있다.

웹에서도 함수를 사용가능하게 하려면 httpd를 재시작해야 한다.

[root@zetawiki ~]# service httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd:                                            [  OK  ]

5 같이 보기[ | ]