PHP Call to a member function execute() [duplicate] - php

Question

This question already has an answer here:
What to do with mysqli problems? Errors like mysqli_fetch_array(): Argument #1 must be of type mysqli_result and such
(1 answer)
Closed 3 years ago.
My html :
<form action="rent.php" method="post"><pre>
Email : <input type="text" name="email">
Message : <input type="text" name="msg_text">
<input type="submit" value="Rent it">
</pre></form>
My rent.php file :
<?php
require_once 'login.php';
$conn = new mysqli($hn, $un, $pw, $db);
if ($conn->connect_error) {
die($conn->connect_error);
}
$query = "SET NAMES utf8";
$result = $conn->query($query);
if (!$result) {
die($conn->error);
}
$req = $conn->prepare('INSET INTO renter (email, msg_text) VALUES(?, ?)');
$req->execute(array($_POST['email'], $_POST['msg_text']));
header('Location: menu.php');
My error when I try to submit, is : Fatal error: Call to a member function execute() on boolean in C:...\rent.php on line 18
email, msg_text are in varchar type

Answer 1

mysqli->prepare can also return FALSE (check http://php.net/manual/en/mysqli.prepare.php) if an error occurred. Your problem is that you have INSET instead of INSERT.

Answer 2

This may help someone:
I was facing same issue.
In my case, i have missed to close first prepared statement before executing second prepared statement.
When i have added $select_stmt_type->close(); before executing second prepare statement, it fixed the issue.

Answer 3

Just to add. Similar error comes when the mysql column name is incorrect in php. I found below error for my condition when i printed the $conn->error.
errno: 1054, error: Unknown column 'xyz' in 'field list'

Answer 4

To catch errors do something like this
$req = $conn->prepare('INSERT INTO renter (email, msg_text) VALUES(?, ?)');
if(!$req){
echo "Prepare failed: (". $conn->errno.") ".$conn->error."<br>";
}
since prepare returns a boolean. Please use when debugging you code and refer to error reporting as stated in the comment.

Answer 5

Your SQL prepared statement needs to be corrected as shudent said, but I think you also have to set the values with ->bind_param() before calling ->execute() (which does not take any parameters).
$stmt = $conn->prepare('INSERT INTO renter (email, msg_text) VALUES(?, ?)');
$stmt->bind_param("ss", $_POST['email'], $_POST['msg_text']);
$stmt->execute();
See documentation and example on the PHP official site : http://php.net/manual/fr/mysqli.prepare.php