TP5打印sql的幾種方式

獲取sql語句

• getLastSql

    $res = Db::table('staff')->field('id,salary')->where('id','>',1)
                ->group('salary')->having('salary > 5000')->select();
    $sql = Db::table('staff')->getLastSql();
    halt($sql);

• select(false)

$res = Db::table('staff')->field('id,salary')->where('id','>',1)
            ->group('salary')->having('salary > 5000')->select(false);
halt($res);

• fetchSql

$res = Db::table('staff')->field('id,salary')->where('id','>',1)
            ->group('salary')->having('salary > 5000')->fetchSql()->select();
halt($res);

• buildSql

$res = Db::table('staff')->field('id,salary')->where('id','>',1)
            ->group('salary')->having('salary > 5000')->buildSql();
halt($res);

• 監聽sql

Db::listen(function($sql, $time, $explain){
    // 記錄SQL
    echo $sql. ' ['.$time.'s]';
    // 查看性能分析結果
    dump($explain);
});

• sql級日誌記錄