97 lines
2.7 KiB
PHP
97 lines
2.7 KiB
PHP
<?php
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namespace App\Library;
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use PDO;
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use PDOException;
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class Database extends PDO
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{
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public function __construct(string $dsn, string $username, string $password)
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{
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try {
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$dsn .= ";charset=utf8";
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parent::__construct(
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$dsn,
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$username,
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$password,
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[PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
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);
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echo "Подлючено успешно!\n";
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} catch (PDOException $e) {
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echo "Ошибка подключения:". $e->getMessage() . "\n";
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}
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}
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public function __destruct()
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{
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echo "Подключение прервано!\n";
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}
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public function insert(string $table, array $data) : void
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{
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$keys = array_keys($data);
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$sql = "INSERT INTO $table (";
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foreach ($keys as $key) {
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$sql .= "$key,";
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}
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$sql = substr_replace($sql, ")", -1);
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$sql .= " VALUES (";
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foreach ($keys as $key) {
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$sql .= ":$key,";
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}
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$sql = substr_replace($sql,"", -1);
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$stmt = $this->prepare($sql);
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foreach ($data as $key => $row) {
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try {
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$stmt->bindParam(":$key", $row[$key]);
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$stmt->execute();
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} catch (PDOException $e) {
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echo "Ошибка запроса: " . $e->getMessage() . "\n";
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}
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}
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}
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public function select(string $table) : array|null
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{
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$stmt = $this->prepare("SELECT * FROM $table");
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try {
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$stmt->execute();
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$array = $stmt->fetchAll(PDO::FETCH_ASSOC);
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} catch (PDOException $e) {
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echo "Ошибка запроса: " . $e->getMessage() . "\n";
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} finally {
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return $array;
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}
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}
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public function selectWhere(
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string $table,
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array $atributes,
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array $filters
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) : array|null {
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// Строим запрос
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$sql = "SELECT ";
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foreach ($atributes as $atribute) {
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$sql .= "$atribute,";
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}
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$sql = substr_replace($sql," ", -1);
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$sql .= "FROM $table WHERE ";
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foreach ($filters as $key => $filter) {
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$sql .= "$key = :$key ";
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}
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$stmt = $this->prepare($sql);
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foreach ($filters as $key => $filter) {
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$stmt->bindParam(":$key", $filter);
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}
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// Выполняем
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try {
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$stmt->execute();
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$array = $stmt->fetchAll(PDO::FETCH_ASSOC);
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} catch (PDOException $e) {
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echo "Ошибка запроса: " . $e->getMessage() . "\n";
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} finally {
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return $array;
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}
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}
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} |