PHP mkdir () function Create folder and permission settings

mkdir ('./aa/', 0777); Copy Code Analysis and test results: The 1,mkdir function specifies a directory permission that is less than or equal to the default permissions set by the system umask. such as the Linux default Umask general 0022, that is, the default permission to create a directory is 0755, so php mkdir ('./aa/', 0777) the permission to get the directory is 0755. For Linxu umask content, please refer to: Linux file and directory default permissions (Umask) Examples of Linux umask command usage Linux umask command-preset file permission mask About the use of Linux Umask Example: mkdir ('./xw/'); chmod ('./xw/', 0777); Copy Code

