pg_fetch_row

(PHP 4, PHP 5)

pg_fetch_row — Get a row as an enumerated array

Descrierea

array pg_fetch_row ( resource $result [, int $row ] )

pg_fetch_row() fetches one row of data from the result associated with the specified result resource.

Notă: Această funcţie stabileşte câmpurile NULL la valoarea PHP NULL.

Parametri

result: PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
row: Row number in result to fetch. Rows are numbered from 0 upwards. If omitted, next row is fetched.

Valorile întroarse

An array, indexed from 0 upwards, with each value represented as a string. Database NULL values are returned as NULL.

FALSE is returned if row exceeds the number of rows in the set, there are no more rows, or on any other error.

Istoria schimbărilor

Versiunea	Descriere
4.1.0	The parameter `row` became optional.

Exemple

Example #1 pg_fetch_row() example


<?php

$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
  echo "An error occured.\n";
  exit;
}

$result = pg_query($conn, "SELECT author, email FROM authors");
if (!$result) {
  echo "An error occured.\n";
  exit;
}

while ($row = pg_fetch_row($result)) {
  echo "Author: $row[0]  E-mail: $row[1]";
  echo "<br />\n";
}
 
?>

Vedeţi de asemenea

pg_field_is_null

pg_fetch_result

Last updated: Fri, 01 Aug 2008

add a note User Contributed Notes
pg_fetch_row

pletiplot at seznam dot cz
07-Jun-2006 12:18


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 11:51


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 09:03


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
23-May-2003 06:29


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
24-Jul-2002 05:38


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
23-Aug-2001 02:39


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, 01 Aug 2008