Question

I m 采用LQ3, 并用KLQ3级设备建造。下面的法典没有按照我所熟悉的其他神秘等级来设想。 rel=“nofollow”>manual说,如果查询成功,则exec方法应当归还。然而,从我所能看到的角度来看,这似乎没有。

$udb = new SQLite3( app.sqlite );

if($udb->exec("DELETE FROM users WHERE id = $del") != FALSE)
    $message =  Deleted User ;
 else
    $message =  Could not delete the user. ;

I would expect that if the row with that ID did not exist, the query would return false or 0 or 0 . None of these are accurate. In fact, I can t figure out what the function is returning at all.

Could someone help out with what this error checking if block should look like?

Answer 1

http://www.ohchr.org。

http://php.net/manual/en/sqlite3changes.php 。

Answer 2

Successfully executing the query is not the same as a returning FALSE on failure.

如果你无效,它就会失败(问询),并将退回虚假。

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