This is the query I have:
$sqlw = "SELECT * FROM coverages where user_id='3828' ORDER BY sp_id ASC";
$resultw = mysql_query($sqlw);
$roww = mysql_fetch_array($resultw);
while ($roww = mysql_fetch_array($resultw)) {
echo $roww['sp_id']."<br>";
}
echo "TOTAL:".mysql_num_rows($resultw)."<br>";
As you can see its very basic the results show : TOTAL:29 But when I count the list of the items returned back its only 28. I ran the query on phpmyadmin it shows a total of 29 rows, I did count them and they are 29.
I ran different other simple queries and it always does the same thing: one row is missing. This could be trivial maybe I am missing something or maybe its server related? any help/ideas would be greatly appreciated. Thank you
在循环处理一行之前,您对mysql_fetch_array()
调用。
You have a classic off-by-one error.
There is an extra $roww = mysql_fetch_array($resultw);
before your loop starts. This means you're throwing away the first row.
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