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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