使用php mysql for mysqli可以从mysql获取多少行的最大行数

Question

<?php
$query = mysql_query("select * from emp");
// emp table contain 10000 records
while($fetch = mysql_fetch_array($query))
{
     echo fetch[0];
}
/* how many record i can get easily from local mysql server and from localhost as well */
?>

如果emp表包含10000条记录，那么我可以从本地mysql服务器和localhost轻松获取多少条记录。