php - Multiple array results in a variable -


i've php code:

$categories = mysql_query("select category_id, category_name categories categories");  while ($row = mysql_fetch_assoc($categories)){         $columnvalues[] = $row['categories']; }  $catlist = $columnvalues[0];  $catchq = mysql_query("select message message box lower(message) '".$catlist."'"); $catchr = mysql_fetch_array($catchq); $catchx = $catchr['message']; echo $catchx."\n";

the above code works intended, [0] match , if message contains name of category [0]. trying accomplish have second query of 4 categories found in first query.

how match against [1], [2], [3] well? tried or operator, doesn't work think (eg. $catlist = $columnvalues[0] or $columnvalues[1];)

you loop on $columnvalues:

$query = "select message message box lower(message)" foreach ($columnvalues $key => $value) {     if ($key) {         $query .= " or ";     }     $query .= " '%$value%' "; } $catchq = mysql_query($query);

your code vulnerable injection. should use parameterized queries pdo or mysqli.


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