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mysql_field_flags> <mysql_fetch_object
[edit] Last updated: Fri, 25 May 2012

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mysql_fetch_row

(PHP 4, PHP 5)

mysql_fetch_rowRecupera una fila de resultado como un array numérico

Descripción

array mysql_fetch_row ( resource $result )

Devuelve un array numérico que corresponde a la fila recuperada y mueve el apuntador de datos interno hacia adelante.

Parámetros

result

El resultado resource que está siendo evaluado. Este resultado proviene de una llamada a mysql_query().

Valores devueltos

Devuelve un array numérico que corresponde a la fila recuperada, o FALSE si no quedan más filas.

mysql_fetch_row()recupera una fila de datos del resultado asociado al identificador de resultado especificado. La fila es devuelta como un array. Cada campo del resultado es almacenada en un índice del array, empezando desde 0.

Ejemplos

Ejemplo #1 Recuperando una fila con mysql_fetch_row()

<?php
            $result 
mysql_query("SELECT id,email FROM people WHERE id = '42'");
            if (!
$result) {
            echo 
'Could not run query: ' mysql_error();
            exit;
            }
            
$row mysql_fetch_row($result);
            
            echo 
$row[0]; // 42
            
echo $row[1]; // the email value
            
?>

Notas

Nota: Esta función define campos NULOS al valor NULL de PHP.

Ver también



mysql_field_flags> <mysql_fetch_object
[edit] Last updated: Fri, 25 May 2012
 
add a note add a note User Contributed Notes mysql_fetch_row
jhulbert at redf dot com 19-Feb-2010 06:32
Creates table from all db info:

<?php
$qry
= "SELECT * FROM exp_member_data";
$res = mysql_query($mem_qry);

function
mysql_fetch_all($res) {
   while(
$row=mysql_fetch_array($res)) {
      
$return[] = $row;
   }
   return
$return;
}

function
create_table($dataArr) {
    echo
"<tr>";
    for(
$j = 0; $j < count($dataArr); $j++) {
        echo
"<td>".$dataArr[$j]."</td>";
    }
    echo
"</tr>";
}

$all = mysql_fetch_all($res);

echo
"<table class='data_table'>";

for(
$i = 0; $i < count($all); $i++) {
   
create_table($all[$i]);
}

echo
"</table>";

?>
larkitetto at gmail dot com 21-Feb-2008 08:29
sry :) note now fixed:

<?php
$esi
=mysql_list_tables($db);$ris=mysql_fetch_row($esi);
//example: $db has >= 1 tabs
echo var_dump($ris);
//echoes only array(1). solution:
while($ris=mysql_fetch_row($esi)) echo $ris[0];
/*debug:
$ris=array("1st_tab"); ... $ris=array("n_tab");$ris=false;*/
while ($ris[]=mysql_fetch_row($esi));
//debug:$ris=array(array("1st_tab"), ... array("n_tab"));
echo $ris[n][0];//echo:"n_tab"
echo $ris[0][n];//echo:array | null
?>

hope it helps
ryhan_balboa at yahoo dot com 16-Nov-2007 02:23
The following are the basic codes to get a specific row from the mysql db into a $row variable:

 
$query = "SELECT * FROM table";
$result = mysql_query($query);
$row = mysql_fetch_row($result);

And $row[0], $row[1] ... $row[n] are used to access those field values.

Does anyone know how I can add a new field to $row, so that the field count increases from n to n+1?

I have tried treating $row like an array, and tried array_push function, but didn't work.

Thanks.
m dot s at programmers-online dot net 16-Nov-2005 06:56
The following function to read all data out of a mysql-resultset, is may be faster than Rafaels solution:

<?
function mysql_fetch_all($result) {
   while($row=mysql_fetch_array($result)) {
       $return[] = $row;
   }
   return $return;
}
?>
mysql at polyzing dot com 12-Jul-2003 09:05
It is probably worth pointing out that the array elements will actually be of type string, OR NULL if the field is null in the database.

Thus, either use a double equal comparison to look for empty or null

Or, use a triple equal comparison to be able to distinguish the two cases

e.g.

if ($field === '') echo "Empty, not NULL\n";

if ($field === NULL) echo "NULL\n";

if ($field == '') echo "Empty or NULL\n";
michael and then an at sign wassupy.com 07-Apr-2003 06:09
to print an array, simply use print_r(array name)

like this:
    $myrow = mysql_fetch_row($result);
echo "<pre>";
print_r($myrow);
echo "</pre>";

this will output the array in a readable form, with the index, too. Don't forget the 'pre' tags or the output will be on a single line.
a at simongrant dot org 05-Feb-2002 10:10
Maybe worth pointing out that all the fields returned by this (and other?) calls are returned with type string. This had me puzzled for quite some time.

 
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