Re: next and previous links - Mailing list pgsql-php

From Roj Niyogi
Subject Re: next and previous links
Date
Msg-id 3D66485A.40803@pghoster.com
Whole thread Raw
In response to next and previous links  (angelo.rigo@globo.com)
List pgsql-php
My obvious first question is whether $limite is getting a value.  If
not, it'll think no parameters are being passed.

Roj

pgHoster.com - PostgreSQL Web Hosting
http://www.pghoster.com

angelo.rigo@globo.com wrote:

>Hi
>i am trying to make this code below to work
>at least i do get a right pagination, going away and coming back with the
>links, but no data is displayed
>
>the browser says this lines has a wrong count parameter
>
>while ($dados = pg_fetch_array($limite)) {
>
>this line is followed by these
>    $nome = $dados["nome"];
>    echo "Nome: $nome<br>";
>}
>
>thank?s in advance !
><?php
>$conn = pg_connect("dbname=anyname user=anyuser");
>$busca = "SELECT nome FROM aprovados order by nome asc";
>$total_reg = "20"; // número de registros por página
>
>if (!$pagina) {
>    $pc = "1";
>} else {
>    $pc = $pagina;
>}
>
>$inicio = $pc - 1;
>$inicio = $inicio * $total_reg;
>
>$limite = pg_exec("$busca LIMIT $inicio,$total_reg");
>$todos = pg_exec("$busca");
>
>$tr = pg_numrows($todos); // verifica o número total de registros
>$tp = $tr / $total_reg; // verifica o número total de páginas
>
>while ($dados = pg_fetch_array($limite)) { // vamos criar a visualização
>
>    $nome = $dados["nome"];
>    echo "Nome: $nome<br>";
>}
>
>$anterior = $pc -1; // agora vamos criar os botões "Anterior e próximo"
>$proximo = $pc +1;
>if ($pc>1) {
>    echo " <a href='?pagina=$anterior'><- Anterior</a> ";
>}
>echo "|";
>if ($pc<$tp) {
>    echo " <a href='?pagina=$proximo'>Próxima -></a>";
>}
>?>
>
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