bindvalue


Confusion between bindValue() and bindParam()?

微笑、不失礼 提交于 2019-12-17 10:42:49
问题 I am confuse between these two functions Bindvalue() and BindParam() I read on php.net it does not escape % and _ , so be careful when using LIKE . So i think BindValue() is not used when we are using LIKE query. when we using LIKE query BindParam() is used. Because as i know BindParam can escape these % and _ . BindValue() doesn't gives protection against sql injection. I am not sure about this, is it true? friends tell what i mention in these 3 points is right or wrong. i am beginner in PDO

PDO->bindParam, PDO->bindValue and PDO->closeCursor

坚强是说给别人听的谎言 提交于 2019-12-10 11:45:28
问题 So far I have been using PDO->bindParam however while reading the manual I found PDO->bindValue from what I can tell PDO->bindValue passes by value where as PDO->bindParam passes by reference, is this the only difference? $modThread = db()->prepare("UPDATE `threads` SET `modtime` = UNIX_TIMESTAMP( ) WHERE `threadid` =:id LIMIT 1"); while(something) { $modThread->bindParam(':id', $thread); $modThread->execute(); //*******************HERE********************// } Again while reading the manual I

PDO->bindParam, PDO->bindValue and PDO->closeCursor

半腔热情 提交于 2019-12-06 16:19:15
So far I have been using PDO->bindParam however while reading the manual I found PDO->bindValue from what I can tell PDO->bindValue passes by value where as PDO->bindParam passes by reference, is this the only difference? $modThread = db()->prepare("UPDATE `threads` SET `modtime` = UNIX_TIMESTAMP( ) WHERE `threadid` =:id LIMIT 1"); while(something) { $modThread->bindParam(':id', $thread); $modThread->execute(); //*******************HERE********************// } Again while reading the manual I found: PDO->closeCursor should I place it where marked? Is it optional/automatically called? Seems

How define the variable type in PDOStatement::bindValue()?

别说谁变了你拦得住时间么 提交于 2019-12-03 17:48:01
问题 The PDOStatement::bindValue() method offers a way to specify the type of the variable bound: PDOStatement::bindValue ( $parameter , $value [, $data_type = PDO::PARAM_STR ] ) I'm wondering, what's the purpose of specifying the data type, whereas when leaved as default ( PARAM_STR ) eventually the database will anyway cast the value to the proper type before using it? For example, if you have these queries over an INTEGER field: INSERT INTO table (integerField) VALUES (?) ; SELECT * FROM table

How define the variable type in PDOStatement::bindValue()?

前提是你 提交于 2019-12-03 06:29:19
The PDOStatement::bindValue() method offers a way to specify the type of the variable bound: PDOStatement::bindValue ( $parameter , $value [, $data_type = PDO::PARAM_STR ] ) I'm wondering, what's the purpose of specifying the data type, whereas when leaved as default ( PARAM_STR ) eventually the database will anyway cast the value to the proper type before using it? For example, if you have these queries over an INTEGER field: INSERT INTO table (integerField) VALUES (?) ; SELECT * FROM table WHERE integerField = ? ; And you bind an integer in PHP, PDO will by default bind it as a string, which

How prepare statement with bindvalue and %?

China☆狼群 提交于 2019-12-02 03:27:36
问题 Yes I have a issue when i try to use bindvalues on the variables that looked like this before: users.firstname LIKE '$firstname%' Now it looks like this: users.firstname LIKE ':firstname%' But it doesn't work, also tried this: users.firstname LIKE :firstname% And got some syntax error.. What is the correct solution for this? I also thought adding the % in the bindValue(:firstname, $firstname%) but i need to use the :firstname in other places too that should not have the %.. Help thank you 回答1

PDO PHP bindValue doesn't work

。_饼干妹妹 提交于 2019-12-01 04:11:23
I know this has been asked 1000 times, but for some reason I continue to bang my head agains the wall.. This works: $sql = 'SELECT a.eventCode, a.eventTime, a.teamCode, a.playerCode, b.lastName, b.firstName, b.number, a.xCoord, a.yCoord, a.id '; $sql = $sql . 'FROM events a, players b '; $sql = $sql . 'WHERE a.regGUID in ( ' . $regGUID . ' ) and '; $sql = $sql . 'a.playerCode=b.playerCode and a.gameCode = "' . $game . '" order by a.eventTime desc, a.actionCode asc'; $stmt = $db->prepare($sql); $results = $stmt->execute(); This Doesn't: $sql = 'SELECT a.eventCode, a.eventTime, a.teamCode, a

PDO PHP bindValue doesn't work

强颜欢笑 提交于 2019-12-01 02:11:21
问题 I know this has been asked 1000 times, but for some reason I continue to bang my head agains the wall.. This works: $sql = 'SELECT a.eventCode, a.eventTime, a.teamCode, a.playerCode, b.lastName, b.firstName, b.number, a.xCoord, a.yCoord, a.id '; $sql = $sql . 'FROM events a, players b '; $sql = $sql . 'WHERE a.regGUID in ( ' . $regGUID . ' ) and '; $sql = $sql . 'a.playerCode=b.playerCode and a.gameCode = "' . $game . '" order by a.eventTime desc, a.actionCode asc'; $stmt = $db->prepare($sql)

Confusion between bindValue() and bindParam()?

痴心易碎 提交于 2019-11-27 12:30:24
I am confuse between these two functions Bindvalue() and BindParam() I read on php.net it does not escape % and _ , so be careful when using LIKE . So i think BindValue() is not used when we are using LIKE query. when we using LIKE query BindParam() is used. Because as i know BindParam can escape these % and _ . BindValue() doesn't gives protection against sql injection. I am not sure about this, is it true? friends tell what i mention in these 3 points is right or wrong. i am beginner in PDO so please explain it clearly .. There should be no difference in how values are escaped or not escaped

What is the difference between bindParam and bindValue?

眉间皱痕 提交于 2019-11-25 22:26:49
问题 What is the difference between PDOStatement::bindParam() and PDOStatement::bindValue()? 回答1: The answer is in the documentation for bindParam: Unlike PDOStatement::bindValue(), the variable is bound as a reference and will only be evaluated at the time that PDOStatement::execute() is called. And execute call PDOStatement::bindParam() to bind PHP variables to the parameter markers: bound variables pass their value as input and receive the output value, if any, of their associated parameter

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