php - Bind_param() on a non-object-error when using variables as input -



php - Bind_param() on a non-object-error when using variables as input -

trying update using mysqli, calling class function this:

$nyvaegt = 10; $navn = 'ord'; $nyoevelse = new oevelse(); $nyoevelse->opdateroevelse( $nyvaegt, $navn );

and corresponding class function:

public function opdateroevelse ( $nyvaegt, $navn) { $this->nyvaegt = $nyvaegt; $this->navn = $navn; global $mysqli; $stmtopdateroevelseihistorik = $mysqli->prepare("update oevelser set `vaegt12reps`=? `navn`='?' values (?, ?)"); var_dump($stmtopdateroevelseihistorik); $stmtopdateroevelseihistorik->bind_param( "ds", $nyvaegt, $navn); $stmtopdateroevelseihistorik->execute(); if ( $stmtopdateroevelseihistorik ) echo "query success!<br>"; else echo "query failed!<br>"; }

if run this, fails saying that:

call fellow member function bind_param() on non-object

the error refers line:

$stmtopdateroevelseihistorik->bind_param(

var_dump responds: bool(false)

so, goes wrong while binding parameters, seems.

if bypass variables , phone call this:

$stmtopdateroevelseihistorik = $mysqli->prepare("update oevelser set `vaegt12reps`=100 `navn`='ord'");

it works fine...

tried kinds of '', ""-variations, can't create work... - advice people of so...?

far know, update doesn't utilize values:

http://dev.mysql.com/doc/refman/5.0/en/update.html

insert does: http://dev.mysql.com/doc/refman/5.6/en/insert.html

plus, remove quotes in ='?' main cause for:

call fellow member function bind_param() on non-object

change existing line following:

$stmtopdateroevelseihistorik = $mysqli->prepare("update oevelser set `vaegt12reps`=? `navn`=?");

php mysqli

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