mrxie
2018-06-18 00:25
字段去重复：
$test_data = M('teacher'); //实例化数据表
//用distinct去重
$data = $test_data->Distinct(true)->field('descriprion')->order('description desc')->select();
//用group去重
$data = $test_data->group('description')->order('description desc')->select();
2018-06-18 00:25
汉课,2018跨境电商交流之旅
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