回答編集履歴
3
追記
test
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@@ -5,3 +5,177 @@
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`microtime()` で処理時間の計測を行って、ログを書き出す処理を書いたことはあります。
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### Sample
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```php
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<?php
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/**
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* DB.class.php
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*/
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class DB
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{
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const DB_NAME = 'sample';
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const DB_USER = 'root';
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const DB_PASSWORD = 'password';
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/**
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* @var PDO
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*/
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private static $pdo = null;
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/**
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* @var PDOStatement
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*/
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private static $stmt = null;
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/**
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* getInstance
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* @return \PDO
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*/
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public static function getInstance(): \PDO
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{
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if (!is_null(static::$pdo)) {
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return static::$pdo;
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}
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$dsn = sprintf('mysql:host=127.0.0.1;dbname=%s;charset=utf8mb4', self::DB_NAME);
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$pdo = new \PDO($dsn, self::DB_USER, self::DB_PASSWORD);
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$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
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$pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
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static::$pdo = $pdo;
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return static::$pdo;
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}
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/**
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* select
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* @param string $sql
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* @param array $params
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* @return null|array
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*/
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public static function select(string $sql, array $params = [])
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{
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$pdo = self::getInstance();
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self::$stmt = $pdo->prepare($sql);
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// start time
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$start = microtime(true);
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self::$stmt->execute($params);
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// end time
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$end = microtime(true);
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$time = $end - $start;
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if ($time > 1) {
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return null;
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}
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return self::$stmt->fetchAll();
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}
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}
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```
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```php
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<?php
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/**
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* index.php
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*/
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ini_set('display_errors', true);
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error_reporting(E_ALL);
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require 'classes/DB.class.php';
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$rows_table1 = DB::select('select * from Table1');
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$rows_table2 = DB::select('select * from Table2');
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$rows_table3 = DB::select('select * from Table3');
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```
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2
追記
test
CHANGED
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@@ -1,3 +1,7 @@
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1
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-
[PDO::setAttribute](http://php.net/manual/ja/pdo.setattribute.php) で `PDO::ATTR_TIMEOUT` を設定する。
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[PDO::setAttribute](http://php.net/manual/ja/pdo.setattribute.php) で `PDO::ATTR_TIMEOUT` を設定する。または、[mysqli::options](http://php.net/manual/ja/mysqli.options.php)で`MYSQLI_OPT_CONNECT_TIMEOUT` を設定する。
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2
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3
3
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という方法を検索で見つけたけど、使ったことはありません。
|
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4
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+
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5
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6
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+
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7
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+
`microtime()` で処理時間の計測を行って、ログを書き出す処理を書いたことはあります。
|
1
追記
test
CHANGED
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File without changes
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