PHP中MySql函数收集

$result

result

<?php

$conn  =  mysql_connect ( "localhost" ,  "mysql_user" ,  "mysql_password" );

if (! $conn ) {
echo  "Unable to connect to DB: "  .  mysql_error ();
exit;
}

if (! mysql_select_db ( "mydbname" )) {
　　 mysql_colse($conn);
echo  "Unable to select mydbname: "  .  mysql_error ();
exit;
}

$sql  =  "SELECT id as userid, fullname, userstatus
　　　FROM   sometable
　　        WHERE  userstatus = 1" ;

$result  =  mysql_query ( $sql, $conn );

if (! $result ) {
echo  "Could not successfully run query ( $sql ) from DB: "  .  mysql_error ();
exit;
}

if ( mysql_num_rows ( $result ) ==  0 ) {
echo  "No rows found, nothing to print so am exiting" ;
exit;
}

// While a row of data exists, put that row in $row as an associative array
// Note: If you're expecting just one row, no need to use a loop
// Note: If you put extract($row); inside the following loop, you'll
//       then create $userid, $fullname, and $userstatus
while ( $row  =  mysql_fetch_assoc ( $result )) {
echo  $row [ "userid" ];
echo  $row [ "fullname" ];
echo  $row [ "userstatus" ];
}

mysql_free_result ( $result );

?>