Php-[PHP] wamp environment. Use PDO to connect to mysql. the SQL statements that can be queried cannot call the stored procedure.

$ SQL & #39; CREATEPROCEDUREt7 () select * fromtb_article & #39; $ dbhnewPDO ($ dsn, & #39; lms & #39;, & #39; 123456 & #39;); $ stmt $ dbh-& gt; query (& #39; CALLt1 () & #39;); $ stmt $ dbh-& gt; prepare (& #39; CALLt1 () & #39;); $ stmt-& gt; execute (); if ($ stmt) {$ rs $ st phpsql stored procedure

$ SQL = 'create PROCEDURE t7 () select * from tb_article ';
$ Dbh = new PDO ($ dsn, 'LMS ', '123 ');
$ Stmt = $ dbh-> query ('Call t1 ()');

// $ Stmt = $ dbh-> prepare ('Call t1 () '); // $ stmt-> execute (); if ($ stmt) {$ rs = $ stmt-> fetchAll ();} else {echo 'no query result ';}

Neither query nor execute method works. the returned result is false.
The stored procedure can be executed normally in PHPmyadmin. Call t1 () can be executed normally on phpmyadmin.