FIX PHP code coming back on browser as is it, problem in printing php code "hello world"

FIX PHP code coming back on browser as is it, problem in printing php code "hello  world"
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• #people_blogs
• #php_code_coming_back_on_browser
• #problem_in_printing_php_code
• #php_file_printing_code_on_browser
• #apache_shows_php_code_instead_of_executing_centos
• #why_is_my_php_code_showing
• #xampp_showing_php_code_in_browser
• #apache_shows_php_code_instead_of_executing_windows
• #show_php_code_in_browser
• #php_file_is_not_opening_in_browser
• #php_code_not_executing_in_browser_ubuntu
• #php_code_display_in_browser_instead_of_executing_it_xampp
• #php_code_doesnt_execute
• #php_code_shows_as_text_in_browser