pg_fetch_row

(PHP 4, PHP 5)

pg_fetch_row — Carica una tupla in un array

Descrizione

array pg_fetch_row ( resource $result , int $tupla )

pg_fetch_row() carica un record dal risultato della query associato alla risorsa identificata da result . La riga (record) è restituia sotto form di array. Ogni campo è identificato da un indice numerico, che inizia da 0.

Restituisce un array che corrisponde alla riga caricata, oppure FALSE se non ci sono altre tuple.

Example #1 Postgres fetch row


<?php 
$conn = pg_pconnect ("dbname=editori");
if (!$conn) {
    echo "Si è verificato un errore.\n";
    exit;
}

$result = pg_query ($conn, "SELECT * FROM autori");
if (!$rrisultato) {
    echo "Si è verificato un errore.\n";
    exit;
}

while ($row = pg_fetch_row($risultato, $i)) {
  for ($j=0; $j < count($row); $j++) {
    echo "$row[$j]&nbsp;";
  }

  echo "<BR>";

}
 
?>

Vedere anche pg_query(), pg_fetch_array(), pg_fetch_object() e pg_fetch_result().

Nota: Dalla versione 4.1.0, row è opzionale. La chiamata a pg_fetch_row() incrementa il puntatore alle tuple di 1.

pg_field_is_null

pg_fetch_result

Last updated: Fri, 18 Jul 2008

add a note User Contributed Notes
pg_fetch_row

pletiplot at seznam dot cz
06-Jun-2006 03:18


Note, that when you retrieve some PG boolean value, you get 't' or 'f' characters which are not compatible with PHP bool.

post at zeller-johannes dot de
26-Apr-2005 02:51


I wondered whether array values of PostgreSQL are converted to PHP arrays by this functions. This is not the case, they are stored in the returned array as a string in the form "{value1 delimiter value2 delimiter value3}" (See http://www.postgresql.org/docs/8.0/interactive/arrays.html#AEN5389).

maxnamara at yahoo dot com
14-Oct-2004 12:03


Get downlines, put them into arrays.



function get_downlines($my_code){

    global $link;



    $sql = "select user_id, name from tb_user where parentcode = $my_code";

    $res = pg_query($link,$sql);

    if(!$res){

        echo "Error: ".$sql;exit();

    }

    $num_fields = pg_num_fields($res);

    $info_rows = 0;



    $num_rows = pg_num_rows($res);

    while($arr = pg_fetch_row($res)){



           $info_offset  = 1;

         $info_columns  = 0;



        while ($info_offset <= $num_fields) {

                 $info_elements[$info_rows][$info_columns] = $arr[$info_columns];

                 $info_offset++; $info_columns++;

        }

        $info_rows++;            

    }

return $info_elements;

}

Matthew Wheeler
22-May-2003 09:29


Note that the internal row counter is incremented BEFORE the row is retrieved. This causes an off by one error if you try to do:



pg_result_seek($resid,0);

pg_fetch_row($resid);



you will get back the SECOND result not the FIRST.

imantr at cbn dot net dot id
23-Jul-2002 08:38


I use the following code to assigning query result to an array.



while ($row = pg_fetch_row($result)) $newArray[] = $row[0];



print_r($newArray);

darw75 at swbell dot net
22-Aug-2001 05:39


a way to do this with 2 loops to insert data into a table...





$num = pg_numrows($result);


$col_num = pg_numfields($result);





for ($i=0; $i<$num; $i++) {


  $line  = pg_fetch_array($result, $i, PGSQL_ASSOC);


  print "\t<tr bgcolor=#dddddd>\n";


    for ($j=0; $j<$col_num; $j++){


    list($col_name, $col_value) =each($line);


    print "\t\t<TD ALIGN=RIGHT><FONT SIZE=1 FACE='Geneva'>$col_value</FONT></TD>\n";


    }


  echo "<br>";


  }

add a note

pg_field_is_null

pg_fetch_result

Last updated: Fri, 18 Jul 2008