I have two table, table2 has nameColumn
that include name of table1 column like
table 1
id|check|status|...|
1 |abc |1 |...|
table2
|nameColumn|...|
|check |...|
|status |...|
I want get value in table1 with column name is value in table2 like
$sql="SELECT * FROM `table1` WHERE `id` = 1 ";
$result = mysqli_query($conn,$sql) or die (mysql_error ());
$rowTable = mysqli_fetch_array($result);
$s = "SELECT * FROM table2";
$r = mysqli_query($conn,$s);
while($row1 = mysqli_fetch_array($r)){
$columnName = $row1['nameColumn'];
$value = $rowTable["'".$columnName."'"]; // fail why?
//$value = $rowTable['check']; // working?
}
I don't know why $value = $rowTable["'".$columnName."'"];
fail the error like
Notice: Undefined index: 'check' ...
But if i using direct like $value = $rowTable['check']; // working why?
$value = $rowTable['check']; // working why?
How to fix that thanks
its failing because your adding unnecessary '
char to it. try the code below
$value = $rowTable[$columnName];
$value = $rowTable['".$columnName."'];
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