PHP - 在while循环中显示变量

Question

I have while loop in a PHP file and outside of that, I have one variable. When I try to add this variable into while, it doesn't work.

example code:

<?

$var1 = 2999288;

while($row = mysql_fetch_array($result)){

echo $var1;

}

?>

Can anybody tell me a solution, how to echo that variable into a while? Or what I'm doing wrong?

Answer 1

Your SQL query is not returning any rows, make sure that your query is working properly before echoing results. Also please look into prepared SQL statements, they are more safe than the traditional way that you are using.