MySQLi_Result
PHP Manual

mysqli_result::fetch_array

mysqli_fetch_array

(PHP 5)

mysqli_result::fetch_array -- mysqli_fetch_arrayFetch a result row as an associative, a numeric array, or both

Descripción

Estilo orientado a objetos

mixed mysqli_result::fetch_array ([ int $resulttype = MYSQLI_BOTH ] )

Estilo por procesos

mixed mysqli_fetch_array ( mysqli_result $result [, int $resulttype = MYSQLI_BOTH ] )

Returns an array that corresponds to the fetched row or NULL if there are no more rows for the resultset represented by the result parameter.

mysqli_fetch_array() is an extended version of the mysqli_fetch_row() function. In addition to storing the data in the numeric indices of the result array, the mysqli_fetch_array() function can also store the data in associative indices, using the field names of the result set as keys.

Note: Los nombres de los campos devueltos por esta función son sensibles a mayúsculas y minúsculas.

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

If two or more columns of the result have the same field names, the last column will take precedence and overwrite the earlier data. In order to access multiple columns with the same name, the numerically indexed version of the row must be used.

Parámetros

result

Sólo estilo procedimental: Un conjunto de identificadores de resultados devuelto por mysqli_query(), mysqli_store_result() o mysqli_use_result().

resulttype

This optional parameter is a constant indicating what type of array should be produced from the current row data. The possible values for this parameter are the constants MYSQLI_ASSOC, MYSQLI_NUM, or MYSQLI_BOTH.

By using the MYSQLI_ASSOC constant this function will behave identically to the mysqli_fetch_assoc(), while MYSQLI_NUM will behave identically to the mysqli_fetch_row() function. The final option MYSQLI_BOTH will create a single array with the attributes of both.

Valores devueltos

Returns an array of strings that corresponds to the fetched row or NULL if there are no more rows in resultset.

Ejemplos

Estilo orientado a objetos

<?php
$mysqli 
= new mysqli("localhost""my_user""my_password""world");

/* check connection */
if (mysqli_connect_errno()) {
    
printf("Connect failed: %s\n"mysqli_connect_error());
    exit();
}

$query "SELECT Name, CountryCode FROM City ORDER by ID LIMIT 3";
$result $mysqli->query($query);

/* numeric array */
$row $result->fetch_array(MYSQLI_NUM);
printf ("%s (%s)\n"$row[0], $row[1]);

/* associative array */
$row $result->fetch_array(MYSQLI_ASSOC);
printf ("%s (%s)\n"$row["Name"], $row["CountryCode"]);

/* associative and numeric array */
$row $result->fetch_array(MYSQLI_BOTH);
printf ("%s (%s)\n"$row[0], $row["CountryCode"]);

/* free result set */
$result->close();

/* close connection */
$mysqli->close();
?>

Estilo por procesos

<?php
$link 
mysqli_connect("localhost""my_user""my_password""world");

/* check connection */
if (mysqli_connect_errno()) {
    
printf("Connect failed: %s\n"mysqli_connect_error());
    exit();
}

$query "SELECT Name, CountryCode FROM City ORDER by ID LIMIT 3";
$result mysqli_query($link$query);

/* numeric array */
$row mysqli_fetch_array($resultMYSQLI_NUM);
printf ("%s (%s)\n"$row[0], $row[1]);

/* associative array */
$row mysqli_fetch_array($resultMYSQLI_ASSOC);
printf ("%s (%s)\n"$row["Name"], $row["CountryCode"]);

/* associative and numeric array */
$row mysqli_fetch_array($resultMYSQLI_BOTH);
printf ("%s (%s)\n"$row[0], $row["CountryCode"]);

/* free result set */
mysqli_free_result($result);

/* close connection */
mysqli_close($link);
?>

El resultado de los ejemplos serían:

Kabul (AFG)
Qandahar (AFG)
Herat (AFG)

Ver también


MySQLi_Result
PHP Manual