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php - 别名内容的读取
習慣沉默
習慣沉默 2017-05-16 13:10:27
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现在有这条sql语句，其中有一个别名为result
$sql = "select sum(num) as result from table";
问题是怎么把result的内容读出来？？

習慣沉默
習慣沉默

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我想大声告诉你
我想大声告诉你2017-05-16 13:12:27 1 floor

After the sql execution is completed, print the return value to see what is returned

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