Member Avatar for PF2G

Hi,

I'm trying to do a table that shows all the news:

<?PHP
include "db_connect.php";

$sql_destaque = "SELECT data_destaque, imagem_destaque, descricao_destaque FROM destaques ORDER BY cod_destaque ASC";
$executa=mysql_query($sql_destaque,$connect);

$dados = array();
while ($linha = mysql_fetch_array($executa)) $dados[] = $linha;
mysql_free_result($executa);


function add_imglink($linha) {
    echo '<td align="center">';
            echo $linha['data_destaque']."<br/>".$linha['descricao_destaque'];          
			echo '<img src="', $linha['imagem_destaque'], '"><br />';
    echo '</td>';
}


define('NUMERO_COLUNAS', 4);
echo '<table width = 90%  height = 45% align = center>';
for ($i = 0; $i < count($dados); $i += NUMERO_COLUNAS) {
    echo '<tr>';

    for ($col = 0; $col < NUMERO_COLUNAS; $col++) {
        if ($i + $col < count($dados)) add_imglink($dados[$i + $col]);
    }

    echo '</tr>';
}
echo '</table>';

But it gives me error at:

while ($linha = mysql_fetch_array($executa)) $dados[] = $linha;
mysql_free_result($executa);

Can someone help me, please?


Thank You,
PF2G

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  • Latest Post Latest Post by diafol
Member Avatar for diafol 
while ($linha = mysql_fetch_array($executa)){
 $dados[] = $linha;
}

Maybe? Otherwise you may have an error in the query - check for number of rows with mysql_num_rows too.

Edited by diafol because: n/a
Member Avatar for PF2G 
while ($linha = mysql_fetch_array($executa)){
 $dados[] = $linha;
}

Maybe? Otherwise you may have an error in the query - check for number of rows with mysql_num_rows too.

It gives me error in:

while ($linha = mysql_fetch_array($executa))

ERROR:

Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in C:\wamp\www\site\index.php on line 135

Member Avatar for diafol

As I mentioned, check with mysql_num_rows(). BUT, I suggest you check your query with static values in the phpmyadmin SQL box.

Member Avatar for PF2G

As I mentioned, check with mysql_num_rows(). BUT, I suggest you check your query with static values in the phpmyadmin SQL box.

It's working.

Now can you help me with other thing?

Now i want to if it reaches to 5 news, the news number 1 is erased.

Do you understand?

Member Avatar for diafol

no

Member Avatar for PF2G

no

Let's see...

You have 4 news, right? And then i add another one, that is automatically insert in the website.

Do you understand 'till here?

Member Avatar for diafol

So you just want the last 4, not the first?

If so, use the LIMIT clause:

SELECT ... FROM table ORDER BY id DESC LIMIT 4
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