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<?php
class MySQLConnection extends CommonDatabase {
protected ?mysqli $link = null;
public function __construct(
protected string $host,
protected string $user,
protected string $password,
protected string $database) {}
public function __destruct() {
if ($this->link)
$this->link->close();
}
public function connect(): bool {
$this->link = new mysqli();
return !!$this->link->real_connect($this->host, $this->user, $this->password, $this->database);
}
public function query(string $sql, ...$args): mysqli_result|bool {
$sql = $this->prepareQuery($sql, ...$args);
$q = $this->link->query($sql);
if (!$q)
logError(__METHOD__.': '.$this->link->error."\n$sql\n".backtrace(1));
return $q;
}
public function fetch($q): ?array {
$row = $q->fetch_assoc();
if (!$row) {
$q->free();
return null;
}
return $row;
}
public function fetchAll($q): ?array {
if (!$q)
return null;
$list = [];
while ($f = $q->fetch_assoc()) {
$list[] = $f;
}
$q->free();
return $list;
}
public function fetchRow($q): ?array {
return $q?->fetch_row();
}
public function result($q, $field = 0) {
return $q?->fetch_row()[$field];
}
public function insertId(): int {
return $this->link->insert_id;
}
public function numRows($q): ?int {
return $q?->num_rows;
}
// public function affectedRows() {
// return $this->link->affected_rows;
// }
//
// public function foundRows() {
// return $this->fetch($this->query("SELECT FOUND_ROWS() AS `count`"))['count'];
// }
public function escape(string $s): string {
return $this->link->real_escape_string($s);
}
}
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