137 lines
2.6 KiB
PHP
137 lines
2.6 KiB
PHP
<?php
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namespace Opencart\System\Library\DB;
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/**
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* Class PgSQL
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*
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* @package
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*/
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class PgSQL {
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/**
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* @var object|resource|null
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*/
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private object|null $connection;
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/**
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* Constructor
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*
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* @param string $hostname
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* @param string $username
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* @param string $password
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* @param string $database
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* @param string $port
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*/
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public function __construct(string $hostname, string $username, string $password, string $database, string $port = '') {
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if (!$port) {
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$port = '5432';
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}
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try {
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$pg = @pg_connect('host=' . $hostname . ' port=' . $port . ' user=' . $username . ' password=' . $password . ' dbname=' . $database . ' options=\'--client_encoding=UTF8\' ');
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} catch (\Exception $e) {
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throw new \Exception('Error: Could not make a database link using ' . $username . '@' . $hostname);
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}
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if ($pg) {
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$this->connection = $pg;
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pg_query($this->connection, "SET CLIENT_ENCODING TO 'UTF8'");
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// Sync PHP and DB time zones
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pg_query($this->connection, "SET TIMEZONE = '" . $this->escape(date('P')) . "'");
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}
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}
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/**
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* Query
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*
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* @param string $sql
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*
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* @return bool|object
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*/
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public function query(string $sql): bool|object {
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$resource = pg_query($this->connection, $sql);
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if ($resource) {
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if (is_resource($resource)) {
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$i = 0;
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$data = [];
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while ($result = pg_fetch_assoc($resource)) {
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$data[$i] = $result;
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$i++;
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}
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pg_free_result($resource);
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$query = new \stdClass();
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$query->row = isset($data[0]) ? $data[0] : [];
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$query->rows = $data;
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$query->num_rows = $i;
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unset($data);
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return $query;
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} else {
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return true;
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}
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} else {
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throw new \Exception('Error: ' . pg_result_error($resource) . '<br/>' . $sql);
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}
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}
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/**
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* Escape
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*
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* @param string value
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*
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* @return string
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*/
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public function escape(string $value): string {
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return pg_escape_string($this->connection, $value);
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}
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/**
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* countAffected
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*
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* @return int
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*/
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public function countAffected(): int {
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return pg_affected_rows($this->connection);
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}
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/**
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* getLastId
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*
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* @return int
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*/
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public function getLastId(): int {
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$query = $this->query("SELECT LASTVAL() AS `id`");
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return $query->row['id'];
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}
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/**
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* isConnected
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*
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* @return bool
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*/
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public function isConnected(): bool {
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return pg_connection_status($this->connection) == PGSQL_CONNECTION_OK;
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}
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/**
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* Destructor
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*
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* Closes the DB connection when this object is destroyed.
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*
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*/
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public function __destruct() {
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if ($this->connection) {
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pg_close($this->connection);
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$this->connection = null;
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}
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}
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}
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