SESSION['ye']";

 

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  • PHP parse/syntax errors; and how to solve them? 13 answers

    • When interpolating array items into a string you need to use the complex interpolation syntax (wrap it in {} ): 

    $sql = "SELECT DISTINCT `sem` from `{$_SESSION['ye']}`";

    It is generally simpler to just save the value to an auxiliary variable. It can make your code easier to read: 

    $ye  = $_SESSION['ye'];
$sql = "SELECT DISTINCT `sem` from `$ye`";

    First assign table name to variable 

    $tableName = $_SESSION['ye'];

    Then use the variable name in query 

    $sql = "SELECT DISTINCT sem from `$tableName`";

    Or simply use 

    $sql = "SELECT DISTINCT sem from `". $_SESSION['ye']."`";

    使用这样的东西

    $sql="SELECT DISTINCT sem from ".$_SESSION['ye'];
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