How Can I Dynamically Bind MySQL Parameters in PHP?

Dynamically Binding MySQL Bind Parameters in PHP

As you've discovered, the bind_param method in PHP's MySQLi extension can be limited in terms of dynamically handling multiple parameters or parameterless queries. Below are strategies for addressing this issue:

Using call_user_func_array

The following code snippet allows you to dynamically create and bind an array of parameters:

if (strnatcmp(phpversion(), '5.3') >= 0) {
    $refs = array();
    foreach ($arr as $key => $value)
        $array_of_params[$key] = &$arr[$key];
    call_user_func_array(array(&$stmt, 'bind_params'), $array_of_params);
}

Using PHP 5.6 Syntax

In PHP 5.6 and later, you can take advantage of the unpacking operator and get_result() method:

public function get_custom_result($sql, $types = null, $params = null) {
    $stmt = $this->mysqli->prepare($sql);
    $stmt->bind_param($types, ...$params);

    if (!$stmt->execute()) return false;
    return $stmt->get_result();
}

Example:

$mysqli = new database(DB_HOST, DB_USER, DB_PASS, DB_NAME);
$output = new search($mysqli);

$sql = "SELECT * FROM root_contacts_cfm WHERE root_contacts_cfm.cnt_id = ?
        AND root_contacts_cfm.cnt_firstname = ?
        ORDER BY cnt_id DESC";

$res = $output->get_custom_result($sql, 'ss', array('1', 'Tk'));
while ($row = res->fetch_assoc()) {
    echo $row['fieldName'] . '<br>';
}

These solutions provide more flexibility and dynamic binding capabilities for your MySQL queries.

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