Mysqli::stmt Fatal error: Call to a member function bind_param() on a non-object in …

$name = “Ming”;
$sex = “male”;
$age=20;
$sql=”insert into student(name,sex,age) values (?,?,?,?) “;
$mysqli_stmt=$mysqli-> prepare($sql);
$mysqli_stmt-> bind_param(‘ssi’, $name,$sex,$age);No syntax error is indicated, but data insertion is always unsuccessful. On checking, $SQL =”insert into Student (name,sex,age) values (?,?,?,?) “; One too many?, there is no corresponding parameter.


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