Recursive validation of user input issues

function Checkenter ($canshu) {        //verify input $obj = new Base ($canshu), $re 1 = $obj->list_tables ($canshu);//if validation does not pass                if ($re 1 = = = False) {echo "The ' $canshu ' is not found, please input again \ n";//require input                        $canagin = enter again;//recursive Verification                        Ch Eckenter ($canagin);} return $canshu;}       $result = Checkenter ($canshu); Var_dump ($result);

Excuse me, if the first input succeeds, pass the verification, that return $canshu; no problem; But how do I get the value of the last input success in recursion? Thank you.

Reply to discussion (solution)

Not return Checkenter ($canagin); Do you?

Not return Checkenter ($canagin); Do you?
Thank you, that's it.
Checkenter ($canagin) is the $canshu in function Checkenter () when it enters recursion, is this understood?

Although the knot has been affixed, but the wrong approach must be corrected
Due to the non-reentrant nature of the HTTP protocol, the function Checkenter cannot appear recursively

Although the knot has been affixed, but the wrong approach must be corrected
Due to the non-reentrant nature of the HTTP protocol, the function Checkenter cannot appear recursively
Moderator adult, this example succeeded, this is a PHP_CLI program, thank you.

Although the knot has been affixed, but the wrong approach must be corrected
Due to the non-reentrant nature of the HTTP protocol, the function Checkenter cannot appear recursively

The little girl, there is a new problem: http://bbs.csdn.net/topics/390444529

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