Código PHP:
<?
///CONEXION
if ( $_SESSION['id_facu'] != $SelectF )
{ $_SESSION['id_facu'] = $SelectF ;//;$_SESSION['facu'] }
if ( $_SESSION['id_carr'] != $SelectC )
{ $_SESSION['id_carr'] = $SelectC;//; $_SESSION['carr'] }
if($_SESSION['id_mat'] != $SelectM )
{ $_SESSION['id_mat'] = $SelectM;//$_SESSION['mat'] }
$_SESSION['cant_regPag']=2; $_SESSION['pagina'] = $_GET["pagina"];
if (empty($_SESSION['pagina']))
{
$_SESSION['inicio'] = 0; $_SESSION['pagina'] = 1;
}
else
{
$_SESSION['inicio'] = ($_SESSION['pagina'] - 1) * $_SESSION['cant_regPag'];
}
function cargar_docentes()
{
$sql="SELECT D.docent_id, D.docent_apel,D.docent_imag, D.docent_nom, M.mat_nom, F.facu_nom,M.mat_id,X.carr_id FROM docentes as D INNER JOIN docentes_carreras_materias as X ON D.docent_id=X.docent_id INNER JOIN materias as M ON X.mat_id=M.mat_id INNER JOIN carreras as C ON X.carr_id=C.carr_id INNER JOIN facultades as F ON F.facu_id=C.facu_id WHERE";
$control=0;
if($_POST['textDA'] != "" || $_POST['textDN'] != "" || !empty($_POST['SelectF']) || !empty($_POST['SelectC']) || !empty($_POST['SelectM']))
{
$band = true;
if($_POST['textDA'] != "")
{
$n = $_POST['textDA'];
$sql = $sql." D.docent_apel LIKE '%$n%'";
$control = 1;
}
if($_POST['textDN'] != "")
{
if($control == 1)
{$sql=$sql." AND";}
else {$control=1;}
$n=$_POST['textDN'];$sql=$sql." D.docent_nom LIKE '%$n%'";
}
if(!empty($_POST['SelectF']))
{
if($control == 1)
{$sql=$sql." AND";}
else {$control=1;}
$n = $_POST['SelectF']; $sql = $sql." F.facu_id='$n'";
}
if(!empty($_POST['SelectC']))
{
if( $control == 1 )
{$sql=$sql." AND";}
else
{$control=1;}
$n=$_POST['SelectC']; $sql=$sql." C.carr_id='$n'";
}
if(!empty($_POST['SelectM']) )
{
if($control==1)
{$sql=$sql." AND";}
else
{$control=1;}
$n=$_POST['SelectM']; $sql=$sql." M.mat_id='$n'" ;
}
$sql=$sql." GROUP BY D.docent_apel, D.docent_nom ORDER BY D.docent_apel, D.docent_nom";//M.mat_nom";
$result=mysql_query($sql) or die("Error en $consulta <br>MySQL dice: ".mysql_error());
$nreg_query = mysql_num_rows($result);
if($nreg_query != 0)
{
$sql= $sql." LIMIT ".$_SESSION['inicio'].",".$_SESSION['cant_regPag']."";
$result=mysql_query($sql) or die("Error en $consulta <br>MySQL dice: ".mysql_error());
$_SESSION['total_paginas'] = ceil($nreg_query / $_SESSION['cant_regPag'] );
while($row=mysql_fetch_array($result))
{
if($band == true)
{ echo "<table width='450' border='1' align='center' cellpadding='5' cellspacing='0'>";
echo "<tr ><td height='20'></td><td>Apellido</td><td>Nombre</td><td>Ir a ficha</td></tr>";//<td>Materia</td><td>Facultad</td>;
$band=false;
}
echo "<tr><td><div align='center'><img src='".$row['docent_imag']."' width='30' height='30'></div></td><td>".$row['docent_apel']."</td><td>".$row['docent_nom']."</td><td><a href='ficha.php?a=".urlencode($row["docent_apel"])."&n=".urlencode($row["docent_nom"])."&m=".urlencode($row["mat_id"])."&i=".$row["docent_id"]." id='enlace'>ir a ficha</a></td></tr>";//<td>".$row['mat_nom']."</td><td>".$row['facu_nom']."</td></td>
}
if($band == false)
{ echo "</table>";}
}
else
{ echo "No hay Registro"; }
}
else
{
echo "ERROR";
}
if(empty($nreg_query))
{ return 0;}
else
{ return $nreg_query; }
}
?>
//cabeza resto
</head>
<body>
<form action="docenteslimit.php" method="Post">
<table width="494" height="207" border="0" align="center" class="tablaD">
<tr>
<td height="24" colspan="4"><label></label></td>
</tr>
<tr>
<td height="24" colspan="4">completo los campos indicados , en base a los datos q conoce </td>
</tr>
<tr>
<td width="64" height="24"><div align="center"> <span class="Estilo5">Apellido :</span> </div></td>
<td><div align="center">
<input type="text" name="textDA" value="<? echo $_POST['textDA'] ;?>" >
</div></td>
<td><div align="center"> <span class="Estilo5">Nombre:</span> </div></td>
<td><div align="center">
<input type="text" name="textDN" value="<? echo $_POST['textDN'];?>" >
</div></td>
</tr>
<tr>
<td width="64" height="24"><div align="center"> <span class="Estilo5">Facultad:</span> </div></td>
<?
$sql="SELECT * FROM facultades WHERE facu_id >1";
$result=mysql_query($sql);
echo"<td width='155'><div align='center'>";
echo "<select name='SelectF' id='cod_facu' onchange='submit()'>";
echo "<option value=0 selected> NO CONOCE FACULTAD</option>";
while ($row=mysql_fetch_array($result))
{
$facu=$row["facu_nom"]; $facu_id=$row["facu_id"];
if($_SESSION['id_facu'] == $facu_id )
{ echo '<option value = '.$facu_id.' selected>'.$facu.'</option>'; SESSION['facu']= $facu_id;
}
else
{ echo '<option value='.$facu_id.' >'.$facu.'</option>'; }
}
echo"</select></div></td>";
echo"<td width='64' class='Estilo5'><div align='center'>";
echo "Carrera</div></td>";
echo "<td width='155'><div align='center'>";
echo "<select name='SelectC' id='cod_carr' onchange='submit()'>";
echo "<option value=0 selected> NO CONOCE CARRERA</option>";
$sql="SELECT * FROM carreras";
if(!empty($_SESSION['id_facu']) || $_SESSION['id_facu']>0)
{
$sql=$sql." WHERE facu_id='".$_SESSION['id_facu']."'";
}
$sql=$sql." order by 2";$result=mysql_query($sql);
while($row=mysql_fetch_array($result))
{
$carr=$row["carr_nom"];$carr_id=$row["carr_id"];
if($_SESSION['id_carr'] == $carr_id )
{ echo '<option value='.$carr_id.' selected>'.$carr.'</option>';
$_SESSION['carr'] = $carr_id;
}
else
{ echo '<option value='.$carr_id.' >'.$carr.'</option>'; }
}
echo "</select></div></td></tr>";
echo "<tr><td width='64' class='Estilo5'><div align='center'>Materias</div></td>";
echo "<td width='155'><div align='center'>";
echo "<select name='SelectM' id='cod_mat' onchange='submit()'>";
echo "<option value=0 >NO CONOCE MATERIA</option>"; $control=0;
$sql="SELECT M.mat_id,M.mat_nom FROM materias M INNER JOIN materias_carreras R ON M.mat_id=R.mat_id INNER JOIN carreras C ON C.carr_id=R.carr_id";
if(!empty($_SESSION['id_carr']) || $_SESSION['id_carr']>0)
{
$sql=$sql." WHERE R.carr_id='".$_SESSION['id_carr']."'";
$control=1;
}
if(!empty($_SESSION['id_facu']) || $_SESSION['id_facu']>0)
{
if($control==1)
{$sql=$sql." AND";}
else
{$sql=$sql." WHERE";}
$sql=$sql." C.facu_id='".$_SESSION['id_facu']."'";
}
$sql=$sql."GROUP BY M.mat_nom order by 2";
$result=mysql_query($sql);
while($row=mysql_fetch_array($result))
{
if($_SESSION['id_mat'] == $row["mat_id"] )
{
echo '<option value='.$row["mat_id"].' selected>'.$row["mat_nom"].'</option>';
$_SESSION['mat'] = $row["mat_id"];
}
else
{
echo '<option value='.$row["mat_id"].'>'.$row["mat_nom"].'</option>';
}
}
echo "</select></div></td>";
?>
<td></td>
<td><div align="center">
<input type="submit" name="Buscar" value="Buscar">
</div></td>
</tr>
<tr>
<td height="61" colspan="4">
<div id="Layer1" style="visibility:visible; height:67px ;width:500px ">
<?
if ($_POST['Buscar']=="Buscar")
{
if(cargar_docentes()>0)
{
if( ($_SESSION['pagina'] - 1) > 0)
{
echo "<a href='docenteslimit.php?pagina=".($_SESSION['pagina'] - 1)."'><Anterior</a> ";
}
for ($i=1; $i<=$total_paginas; $i++)
{
if ($_SESSION['pagina'] == $i)
{
echo "<b>".$_SESSION['pagina']."</b> ";
}
else
{
echo "<a href='docenteslimit.php?pagina=$i'>$i</a>"; }
}
if (($_SESSION['pagina'] + 1)<=$_SESSION['total_paginas'])
{
echo " <a href='docenteslimit.php?pagina=".($_SESSION['pagina']+1)."'>Siguiente></a>";
}
}
}
?>
</div>
</label>
</div>
</td>
</tr>
</table>
</form>
</body> 
