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Method 1: Check whether the gd library is enabled
1. Find the php.ini file and search for the extension=php_gd2.dll code (windows)
2. Then remove the previous ; symbol
centOS6.5 may need to install the gd library:
sudo yum install gd gd-devel php-gdsudo service php-fpm restart
Method 2:
The key point is to obtain verification The picture of the code is related to the global variable SITE_URL, which is the directory of the website, so just modify the website path variable 'web_path' in the cache/configs/system.php file.
In addition:
/caches/configs/system.php file also needs to be UTF-8 encoded.
Example (local domain name http://localhost)
If all files are in the root directory (such as htdocs under apache), at this time, the default access address should be is http://localhost/, then 'web_path'=>'/'. If the default access address of the website is not the root directory, you need to change the value of the variable 'web_path' to the new directory address, for example, in the root directory In the install subdirectory under the directory, it should be 'web_path'=>'/install/'. Note that the last '/' cannot be omitted.
Method 3:
Modify the encoding of the config.inc.php file to ANSI, which means it is consistent with the encoding of checkcode.php, because the encoding of checkcode.php is ANSI!
Find a UTF-8 text tool, such as UltraEdit-32, and save it as UTF-8 without BOM.
Related recommendations: phpcms tutorial
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