PHP实现分组 类似mysql groupby+in读取

PHP实现分组 类似mysqlgroupby+in读取 反正都要读取 那就用PHP来分组吧

/** * @description:根据数据 * @param {dataArr:需要分组的数据；keyStr:分组依据} * @retu: */protected function dataGroup($dataArr, $keyStr){$newArr = [];foreach ($dataArr as $k => $val) {  $newArr[$val[$keyStr]][] = $val;}retu $newArr;}

  $array = array(array('name' => 'zhangsan', 'chinese' => '89', 'math' => '95', 'english' => '88'),array('name' => 'zhangsan', 'chinese' => '11', 'math' => '816', 'english' => '90'),array('name' => 'lisi', 'chinese' => '3', 'math' => '286', 'english' => '902'),array('name' => 'lisi', 'chinese' => '921', 'math' => '836', 'english' => '90'),array('name' => 'lisi', 'chinese' => '291', 'math' => '846', 'english' => '290'),);$list=$this->dataGroup($array,'name');print_r($list);exit();

输出如下

Array([zhangsan] => Array([0] => Array([name] => zhangsan[chinese] => 89[math] => 95[english] => 88)[1] => Array([name] => zhangsan[chinese] => 11[math] => 816[english] => 90))[lisi] => Array([0] => Array([name] => lisi[chinese] => 3[math] => 286[english] => 902)[1] => Array([name] => lisi[chinese] => 921[math] => 836[english] => 90)[2] => Array([name] => lisi[chinese] => 291[math] => 846[english] => 290)))