Como obtener valores de una base de datos con FPDF

[luisroronoa]

Hola a todos he corregido mi codig

Código PHP:

<?php 
include './fpdf/fpdf.php';
include './phpfiles/Libreria.php';
 
$conex=  conecta();
 
        
$query = mysql_query( "SELECT * FROM usuarios WHERE matricula = '".$_POST[ 'm' ]."' " );
$row = mysql_fetch_array( $query );
    $codigo = $row[ 'codigo' ];
    $matricula = $row['matricula'];
    $nombres = $row['nombres'];
    $dia = $row['dia'];
    $tutor = $row['tutor'];
 
$pdf=new FPDF();
$pdf->AddPage();
$pdf->SetFont('arial','',18);
$pdf->Image('./image/logo.jpg',10,8,50,30);
$pdf->Ln();
$pdf->Cell(200,10,"Hola  ",0,1,'C');
$pdf->Cell(200,10,"hola ",0,1,'C');
$pdf->Ln(20);
$pdf->Cell(180,5,"hola",0,1,'C');
$pdf->Cell(180,10,utf8_decode("hola"),0,1,'C');
$pdf->Ln(10);
$pdf->SetFont('arial','',9);
$pdf->Cell(30,8,'NOMBRE:',1,0,'C');
$pdf->SetFont('Arial','',9);
$pdf->Cell(100,8,$nombres['nombres'],1,0,'C');
$pdf->SetFont('Arial','',9);
$pdf->Cell(30,8,'Matricula',1,'C');
$pdf->SetFont('Arial','',9);
$pdf->SetTextColor(236,33,33);
$pdf->Cell(25,8,$matricula['matricula'],1,0,'C');
$pdf->SetFont('Arial','',9);
$pdf->SetTextColor(0,0,0);
$pdf->Ln();
$pdf->Cell(35,8,utf8_decode('Fecha de Expedición'),1,0,'C');
$pdf->Cell(35,8,$codigo['codigo'],1,0,'C');
$pdf->Cell(35,8,utf8_decode('Fecha de Inasistencia'),1,0,'C');
$pdf->Cell(35,8,$dia['dia'],1,0,'C');
$pdf->Cell(20,8,utf8_decode('Grupo'),1,0,'C');
$pdf->Cell(25,8,'',1,0,'C');
$pdf->Ln();
$pdf->Cell(45,8,utf8_decode('No. de Dias Justificados'),1,0,'C');
$pdf->Cell(35,8,'',1,0,'C');
 
$pdf->Cell(70,8,utf8_decode('Maestro'),1,0,'C');
$pdf->Cell(100,8,$tutor['tutor'],1,0,'C');
 
$pdf->Cell(30,8,utf8_decode('Firma'),1,0,'C');
$pdf->Ln();
 
$pdf->Ln(15);
$pdf->Cell(30,8,utf8_decode('Motivo:'),1,0,'C');
$pdf->Cell(155,8,utf8_decode(''),1,0,'C');
$pdf->Ln(20);
$pdf->Cell(30,4,utf8_decode('Documento Anexo'),0,0,'C');
$pdf->Ln(15);
$pdf->Cell(5,4,utf8_decode(''),1,0,'C');
$pdf->Cell(35,4,utf8_decode('Receta Medica'),0,0,'C');
$pdf->Cell(5,4,utf8_decode(''),1,0,'C');
$pdf->Cell(35,4,utf8_decode('Trabajo'),0,0,'C');
$pdf->Cell(5,4,utf8_decode(''),1,0,'C');
$pdf->Cell(45,4,utf8_decode('Motivos Familiares'),0,0,'C');
$pdf->Cell(5,4,utf8_decode(''),1,0,'C');
$pdf->Cell(35,4,utf8_decode('Otro'),0,0,'C');
$pdf->Cell(5,4,utf8_decode(''),1,0,'C');
$pdf->Ln(30);
$pdf->Cell(90,8,utf8_decode('Tutor'),0,0,'C');
$pdf->Cell(90,8,utf8_decode('Alumno'),0,0,'C');
$pdf->Ln(15);
$pdf->Cell(15,1,utf8_decode(''),0,0,'C');
$pdf->Cell(60,0.5,utf8_decode(''),0,0,'C',1);
$pdf->Cell(30,1,utf8_decode(''),0,0,'C');
$pdf->Cell(60,0.5,utf8_decode(''),0,0,'C',1);
 
$pdf->Ln();
 
 
$pdf->SetFont('Arial','',13);
$pdf->Cell(190,20,utf8_decode( "El Justificante es expedido por el tutor y podra ser valido por los 2 dias."),0,1,'C');
        $pdf->Output();
 
 
 
?>
 

Actualmente lo tengo asi creo que tengo error al llamar la funcion de php o no se pero me sale esto
Warning: Illegal string offset 'nombres' in C:\xampp\htdocs\sesion\newEmptyPHP.php on line 30

Warning: Illegal string offset 'matricula' in C:\xampp\htdocs\sesion\newEmptyPHP.php on line 35

Warning: Illegal string offset 'codigo' in C:\xampp\htdocs\sesion\newEmptyPHP.php on line 40

Warning: Illegal string offset 'dia' in C:\xampp\htdocs\sesion\newEmptyPHP.php on line 42

Warning: Illegal string offset 'tutor' in C:\xampp\htdocs\sesion\newEmptyPHP.php on line 50

Notice: Uninitialized string offset: 0 in C:\xampp\htdocs\sesion\newEmptyPHP.php on line 50
FPDF error: Some data has already been output, can't send PDF file



Y este es el form

Código HTML:

<form method="post" action="newEmptyPHP.php">
    <input type="text" name="m" required="required"/> 
    <input  type="submit" value="buscalo">Ingresa el numero de matricula que deseas buscar</input>
    </form>
 

Y este es la libreria

Código PHP:

<?php
 
 
function conecta() {
    $conex = mysql_connect("localhost", "root", "")
            or die("No se puede conectar" . mysql_error());
    mysql_select_db("personas", $conex);
    mysql_query("SET NAMES 'utf8'");
    return $conex;
}
 
function cierre() {
    mysql_close();
}
 
?>