   #PHP Manual Control Structures declare require

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return

   If called from within a function, the return() statement immediately
   ends execution of the current function, and returns its argument as
   the value of the function call. return() will also end the execution
   of an eval() statement or script file.

   If called from the global scope, then execution of the current script
   file is ended. If the current script file was include()ed or
   require()ed, then control is passed back to the calling file.
   Furthermore, if the current script file was include()ed, then the
   value given to return() will be returned as the value of the include()
   call. If return() is called from within the main script file, then
   script execution ends. If the current script file was named by the
   auto_prepend_file or auto_append_file configuration options in
   php.ini, then that script file's execution is ended.

   For more information, see Returning values.

     Note: Note that since return() is a language construct and not a
     function, the parentheses surrounding its arguments are only
     required if the argument contains an expression. It is common to
     leave them out while returning a variable.
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