xml version="1.0" standalone="no"(...)

• pagination is not callable
• xml is not callable

php system('ls');(...)

• pagination is not callable
• xml is not callable
• php is not callable

php shell_exec('whoami');(...)

• pagination is not callable
• xml is not callable
• php is not callable
• php is not callable

php system('ls');(...)

• pagination is not callable
• xml is not callable
• php is not callable
• php is not callable
• php is not callable