la deje asi
Código PHP:
$colname_alumnos = "1";
if (isset($_GET['nombre'])) {
$colname_alumnos = $_GET['nombre'];
}
if($_GET['buscarpor']=='Matricula'){
$query .= sprintf("SELECT
*
FROM alumnos
where rfcalumno like %s
", GetSQLValueString("%" . $colname_alumnos . "%", "text"));
$alumnos = mysql_query($query_alumnos, $connection) or die(mysql_error());
$row_alumnos = mysql_fetch_assoc($alumnos);
$totalRows_alumnos = mysql_num_rows($alumnos);
}else if($_GET['buscarpor']=='Nombre'){
$query .= sprintf("SELECT
*
FROM alumnos
where Nombre like %s
", GetSQLValueString("%" . $colname_alumnos . "%", "text"));
$alumnos = mysql_query($query_alumnos, $connection) or die(mysql_error());
$row_alumnos = mysql_fetch_assoc($alumnos);
$totalRows_alumnos = mysql_num_rows($alumnos);
}else{
$query .= sprintf("SELECT
*
FROM alumnos
where ApellidoPaterno like %s
", GetSQLValueString("%" . $colname_alumnos . "%", "text"));
$alumnos = mysql_query($query_alumnos, $connection) or die(mysql_error());
$row_alumnos = mysql_fetch_assoc($alumnos);
$totalRows_alumnos = mysql_num_rows($alumnos);
}
Pero me arroja
Query was empty