mysqli_stmt::bind_param
lot of people don't like how bind_result works with prepared statements! it requires you to pass long list of parameters which will be loaded with column value when the function being called.
To solve this, i used call_user_func_array function and result_metadata functions. which make easy and automatically returns an array of all columns results stored in an array with column names.
please don't forget to change setting variables with your own credentials:
<?php
$host = 'localhost';
$user = 'root';
$pass = '1234';
$data = 'test';
$mysqli = new mysqli($host, $user, $pass, $data);
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
if ($stmt = $mysqli->prepare("SELECT * FROM sample WHERE t2 LIKE ?")) {
$tt2 = '%';
$stmt->bind_param("s", $tt2);
$stmt->execute();
$meta = $stmt->result_metadata();
while ($field = $meta->fetch_field())
{
$params[] = &$row[$field->name];
}
call_user_func_array(array($stmt, 'bind_result'), $params);
while ($stmt->fetch()) {
foreach($row as $key => $val)
{
$c[$key] = $val;
}
$result[] = $c;
}
$stmt->close();
}
$mysqli->close();
print_r($result);
?>
mysqli_stmt::bind_result
mysqli_stmt_bind_result
(PHP 5)
mysqli_stmt_bind_result — Binds variables to a prepared statement for result storage
Descrizione
Object oriented style (method):
Procedural style:
Binds columns in the result set to variables.
When mysqli_stmt_fetch() is called to fetch data, the MySQL client/server protocol places the data for the bound columns into the specified variables var1, ... .
Nota: Note that all columns must be bound after mysqli_stmt_execute() and prior to calling mysqli_stmt_fetch(). Depending on column types bound variables can silently change to the corresponding PHP type.
A column can be bound or rebound at any time, even after a result set has been partially retrieved. The new binding takes effect the next time mysqli_stmt_fetch() is called.
Elenco dei parametri
- stmt
-
Solo nello stile procedurale: un identificatore di statement restituito da mysqli_stmt_init().
- var1
-
The variable to be bound.
Valori restituiti
Restituisce TRUE in caso di successo, FALSE in caso di fallimento.
Esempi
Example #1 Object oriented style
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* prepare statement */
if ($stmt = $mysqli->prepare("SELECT Code, Name FROM Country ORDER BY Name LIMIT 5")) {
$stmt->execute();
/* bind variables to prepared statement */
$stmt->bind_result($col1, $col2);
/* fetch values */
while ($stmt->fetch()) {
printf("%s %s\n", $col1, $col2);
}
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>
Example #2 Procedural style
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (!$link) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* prepare statement */
if ($stmt = mysqli_prepare($link, "SELECT Code, Name FROM Country ORDER BY Name LIMIT 5")) {
mysqli_stmt_execute($stmt);
/* bind variables to prepared statement */
mysqli_stmt_bind_result($stmt, $col1, $col2);
/* fetch values */
while (mysqli_stmt_fetch($stmt)) {
printf("%s %s\n", $col1, $col2);
}
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>
Il precedente esempio visualizzerà:
AFG Afghanistan ALB Albania DZA Algeria ASM American Samoa AND Andorra
add a note
User Contributed Notesmysqli_stmt::bind_result
hamidhossain at gmail dot com
01-Sep-2008 07:07
01-Sep-2008 07:07