TP5打印sql的几种方式

zhuan:https://www.it610.com/article/1280025294710784000.htm

获取sql语句

• 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); 

• 监听sql

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