Article View: chile.comp.programacion
Article #3216Re: contar campos en mysql
From: Jos� Miguel Santib��ez
Date: Thu, 14 Apr 2005 02:47
Date: Thu, 14 Apr 2005 02:47
40 lines
1862 bytes
1862 bytes
En el cap�tulo anterior (news:d3kkib$rb7$1@news1.nivel5.cl), "+mArkO+"
<kitim@porta.com> dijo:
> <?php
>
> $result = mysql_query("SELECT * FROM usuarios");
> if (!$result) {
> echo 'Could not run query: ' . mysql_error();
> exit;
> }
> /* retorna la cantidad total de campos de la consulta*/
> echo mysql_num_fields($result);
> ?>
>
En ese caso, sugiero:
> $result = mysql_query("SELECT * FROM usuarios LIMIT 0,1");
Para ahorrar espacio...
En todo caso, me parece m�s directo (la otra podr�a fallar si no hay
registros)
<?php
// conectar...
$result = mysql_query("DESCRIBE usuarios");
if (!$result) {
echo 'Could not run query: ' . mysql_error();
exit;
}
/* retorna la cantidad total de campos de la consulta*/
echo mysql_num_rows($result);
?>
--
Jose M. Santiba�ez A.
<jms@nivel5.cl>
<http://caos.cl/jms>
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Subject: Re: contar campos en mysql
From: "Jos� Miguel Santib��ez" <jms@nospam.nivel5.cl>
References: <d3kjl9$qv0$1@news1.nivel5.cl> <d3kkib$rb7$1@news1.nivel5.cl>
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