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Last updated: Sat, 27 Jan 2007

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# pg_fetch_row

(PHP 3 >= 3.0.1, PHP 4, PHP 5)

pg_fetch_row -- Get a row as an enumerated array

## Описание

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.

> Замечание: Эта функция устанавливает NULL-поля в значение `NULL` PHP.

> Замечание: From PHP 4.1.0, `row` became optional.

## Список параметров

`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.

## Возвращаемые значения

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.

## Примеры

Пример 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";
}
?>`

## Смотрите также

pg_query()
pg_fetch_array()
pg_fetch_object()
pg_fetch_result()

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>";
}`
rtreat2 at tampabay dot rr dot com
23-Oct-2000 05:41
`the mysql way....
$rows = pg_numrows($result);
for ($i=0; $i < $rows; $i++){
list($foo,$bar) = pg_fetch_row($result,$i);
print ("$foo , $bar)\n");
}`
add a note
pg_field_is_null pg_fetch_result

Last updated: Sat, 27 Jan 2007
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