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JS Mysql Alert box


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I am trying to create an alert box to connect to one of mysql table and the field is called "Finish", data type is Date.

When a task is expired I would like to have a popup message to alert the user to say the task is expired.


Here is the code which I am not able to get it to work is given me an error message, that is the code in red bold. I would be really grateful if someone can tell me what I'm doing wrong here please? Thanks


( ! ) Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, boolean given in C:wampwwwScholarGoalTrackerstudentAccount.php on line 96



$curdate = date('m/d/y');
$query4 = 'select finish from task WHERE account_id =$account_id"';
$result4= mysqli_query($con, $query4);
while($row = mysqli_fetch_array($result4)){
if($row['finish'] == $curdate)
echo '<script language="javascript">alert("Your task had been expired.")</script>';


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The query is wrong.

$account_id is literally being interpretted as "$account_id" because you've wrapped the string in single quotes. Aside from that, the double quote at the end of the string is a syntax error for MySQL. I don't see where the value of $account_id is being set, but you might be at risk of SQL injection.

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