public $connected;
private $current_pquery;
private $current_stmt;
+ private $current_result;
/**
- * [__construct description]
- * @param [type] $host [description]
- * @param [type] $username [description]
- * @param [type] $password [description]
- * @param [type] $dbname [description]
+ * __construct class constructor method that permit to initialize
+ * the connection to the RDBMS database
+ * @param string $host RDBMS hostname
+ * @param string $username RDBMS user
+ * @param string $password RDBMS user password
+ * @param string $dbname RDBMS database to use
+ * @return object an object which represents the connection to a RDBMS Server.
*/
public function __construct($host, $username, $password, $dbname)
{
- $connection = new mysqli($host, $username, $password, $dbname);
- $this->connection = $connection;
+ $this->connection = new mysqli($host, $username, $password, $dbname);
if (!$this->connection->connect_errno) {
$this->connected = true;
} else {
- die('Fail to connect to the RDBMS');
+ die('Fail to connect to the RDBMS.');
}
return $this->connection;
}
/**
- * [close description]
- * @return [type] [description]
+ * [__destruct description]
+ */
+ /* public function __destruct()
+ {
+ $this->close();
+ } */
+
+ /**
+ * close method to close the opened connection to the RDBMS server
+ * @return void
*/
public function close()
{
if ($this->connected && $this->connection->close()) {
$this->connected = false;
} else {
- die('Fail to close the connection to the RDBMS');
+ die('Fail to close the connection to the RDBMS.');
}
}
/**
- * [query description]
- * @param [type] $sql_query [description]
- * @return [type] [description]
+ * query method that permit to execute a SQL query
+ * @param string $sql_query the SQL query to execute
+ * @return object mysqli_result or FALSE on failure and TRUE for queries
+ * without results
*/
public function query($sql_query)
{
- if ($this->connected && !($query_result = $this->connection->query($sql_query))) {
- echo "Fail to execute the SQL query : " . $sql_query;
+ if ($this->connected && !($this->current_result = $this->connection->query($sql_query))) {
+ echo "Fail to execute the SQL query : " . $sql_query . "<br>";
}
- return $query_result;
+ return $this->current_result;
}
/**
- * [prepare_query description]
- * @param [type] $prepared_query [description]
- * @return [type] [description]
+ * prepare_query method for parametrized SQL query preparation
+ * @param string $prepared_query parametrized SQL query to prepare
+ * @return object statement object or FALSE if an error occurred
*/
public function prepare_query($prepared_query)
{
if ($this->connected && !($this->current_stmt = $this->connection->prepare($this->current_pquery))) {
// Empty the currently stored prepared query in the failure case
$this->current_pquery = "";
- echo "Fail to prepare SQL query : (" . $this->connection->errno . ") " . $this->connection->error . " - " . $this->current_pquery;
+ echo "Fail to prepare SQL query : (" . $this->connection->errno . ") " . $this->connection->error . " - " . $this->current_pquery . "<br>";
}
return $this->current_stmt;
}
/**
- * [prepared_query_bind_param description]
- * @param [type] $params [description]
- * @return [type] [description]
+ * prepared_query_bind_param link parameters values to a prepared SQL query
+ * @param string $types parameters types
+ * @param array $params unidimensional array of parameters values
+ * @return boolean TRUE on success or FALSE on failure
*/
- public function prepared_query_bind_param(...$params)
+ public function prepared_query_bind_param($types, $params)
{
- $rt_val = $this->current_stmt->bind_param($params);
+ $rt_val = $this->current_stmt->bind_param($types, ...$params);
if (!$rt_val) {
- echo "Fail to link parameters to SQL query : (" . $this->current_stmt->errno . ") " . $this->current_stmt->error . " - " . $this->current_pquery;
+ echo "Fail to link parameters to SQL query : (" . $this->current_stmt->errno . ") " . $this->current_stmt->error . " - " . $this->current_pquery . "<br>";
}
return $rt_val;
}
/**
- * [run_prepared_query description]
- * @return [type] [description]
+ * run_prepared_query method that execute a parametrized SQL query linked
+ * with its parameters values
+ * @return boolean TRUE on success or FALSE on failure
*/
public function run_prepared_query()
{
$rt_val = $this->current_stmt->execute();
if (!$rt_val) {
- echo "Fail to execute SQL query : (" . $this->current_stmt->errno . ") " . $this->current_stmt->error . " - " . $this->current_pquery;
+ echo "Fail to execute SQL query : (" . $this->current_stmt->errno . ") " . $this->current_stmt->error . " - " . $this->current_pquery . "<br>";
+ }
+ return $rt_val;
+ }
+
+ /**
+ * get_pquery_result method to get the resultset of parametrized SQL query
+ * @return object mysqli_result resultset or FALSE for other DML queries or on failure
+ */
+ public function get_pquery_result()
+ {
+ $rt_val = $this->current_result = $this->current_stmt->get_result();
+ if (!$rt_val) {
+ echo "Fail to fill SQL query result : (" . $this->current_stmt->errno . ") " . $this->current_stmt->error . " - " . $this->current_pquery . "<br>";
+ }
+ return $rt_val;
+ }
+
+ /**
+ * [get_result_array description]
+ * @return [type] [description]
+ */
+ public function get_result_array()
+ {
+ $row = $this->current_result->fetch_array();
+ if (is_null($row)) {
+ $rt_val = [];
+ } elseif (!isset($row)) {
+ echo "Fail to build SQL query result array : (" . $this->current_stmt->errno . ") " . $this->current_stmt->error . " - " . $this->current_pquery . "<br>";
+ $rt_val = false;
+ } else {
+ $rows[] = $row;
+ while ($row = $this->current_result->fetch_array()) {
+ $rows[] = $row;
+ }
+ $rt_val = $rows;
}
return $rt_val;
}
{
$rt_val = $this->current_stmt->close();
if (!$rt_val) {
- echo "Fail to close SQL query : (" . $this->current_stmt->errno . ") " . $this->current_stmt->error . " - " . $this->current_pquery;
+ echo "Fail to close SQL query : (" . $this->current_stmt->errno . ") " . $this->current_stmt->error . " - " . $this->current_pquery . "<br>";
}
return $rt_val;
}
}
+
?>
repositories / Project_webapp.git / blobdiff