Example with PostgreSQL

<?php
//Example FPDF script with PostgreSQL
//Ribamar FS - ribafs@dnocs.gov.br

require('fpdf.php');

$pdf=new FPDF();
$pdf->AddPage();
$pdf->SetTitle('Exemplo de Relatório em PDF via PHP');

//Set font and colors
$pdf->SetFont('Arial','B',16);
$pdf->SetFillColor(255,0,0);
$pdf->SetTextColor(255);
$pdf->SetDrawColor(128,0,0);
$pdf->SetLineWidth(.3);

//Table header
$pdf->Cell(20,10,'SIAPE',1,0,'L',1);
$pdf->Cell(50,10,'Nome',1,1,'L',1);

//Restore font and colors
$pdf->SetFont('Arial','',10);
$pdf->SetFillColor(224,235,255);
$pdf->SetTextColor(0);

//Connection and query
$str_conexao='dbname=contabilidade port=5432 user=postgres password=postgres';
$conexao=pg_connect($str_conexao) or die('A conexão ao banco de dados falhou!');
$consulta=pg_exec($conexao,'select * from conveniologin');
$numregs=pg_numrows($consulta);

//Build table
$fill=false;
$i=0;
while($i<$numregs)
{
    $siape=pg_result($consulta,$i,'siape');
    $nome=pg_result($consulta,$i,'nome');
    $pdf->Cell(20,10,$siape,1,0,'R',$fill);
    $pdf->Cell(50,10,$nome,1,1,'L',$fill);
    $fill=!$fill;
    $i++;
}

//Add a rectangle, a line, a logo and some text
$pdf->Rect(5,5,170,80);
$pdf->Line(5,90,90,90);
$pdf->Image('mouse.jpg',185,5,10,0,'JPG','http://www.dnocs.gov.br');
$pdf->SetFillColor(224,235);
$pdf->SetFont('Arial','B',8);
$pdf->SetXY(5,95);
$pdf->Cell(170,5,'PDF gerado via PHP acessando banco de dados - Por Ribamar FS',1,1,'L',1,'mailto:ribafs@dnocs.gov.br');

$pdf->Output();
?>