使用mysql_query进行变量声明

Question

In the following PHP code, s_at is a column that includes integer values in database. I need to declare one of that value where index is 1, to $s_at . But won't happen in this way. I'm glad if anyone could help.

$s_at  = mysql_query("Select('s_at') FROM `time_holder` WHERE `index` = 1");

Answer 1

quite easy:

$mi_resource = mysql_query("Select `s_at` FROM `time_holder` WHERE `index` = 1");
// .... error checking left out

$records = mysql_fetch_assoc($mi_resource);
// .... error checking left out

$s_at = $records[$record_num]['s_at']; // probably #0 if only one record.

...

see mysql_query

Answer 2

Change your code to this and it will work for sure :

$result = mysql_query("Select `s_at` FROM `time_holder` WHERE `index` = 1");
$row = mysql_fetch_array($result);
$s_at = $row['s_at'];