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).
pg_fetch_row
(PHP 4, PHP 5, PHP 7, PHP 8)
pg_fetch_row — Get a row as an enumerated array
Açıklama
pg_fetch_row() fetches one row of data from
the result associated with the specified result instance.
Bilginize: Bu işlev NULL alanlara PHP
nulldeğerini atar.
Bağımsız Değişkenler
-
result -
pg_query(), pg_query_params() veya pg_execute() işlevinden dönen PgSql\Result nesnesi.
-
row -
Row number in result to fetch. Rows are numbered from 0 upwards. If omitted or
null, the next row is fetched. -
mode -
Dizinin nasıl indisleneceğini belirleyen seçimlik bağımsız değişken.
kipbir sabit olup şu değerleri alabilir:PGSQL_ASSOC,PGSQL_NUMvePGSQL_BOTH.PGSQL_NUMile işlev sayısal indisli bir dizi,PGSQL_ASSOCile ilişkisel bir dizi vePGSQL_BOTHile hem sayısal hem de ilişkisel indisli bir dizi döndürür.
Dönen Değerler
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.
Sürüm Bilgisi
| Sürüm: | Açıklama |
|---|---|
| 8.1.0 |
sonuç bağımsız değişkeni artık
PgSql\Result nesnesi kabul ediyor, evvelce bir
özkaynak kabul ederdi.
|
Örnekler
Örnek 1 pg_fetch_row() example
<?php
$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
echo "An error occurred.\n";
exit;
}
$result = pg_query($conn, "SELECT author, email FROM authors");
if (!$result) {
echo "An error occurred.\n";
exit;
}
while ($row = pg_fetch_row($result)) {
echo "Author: $row[0] E-mail: $row[1]";
echo "<br />\n";
}
?>Ayrıca Bakınız
- pg_query() - Execute a query
- pg_fetch_array() - Fetch a row as an array
- pg_fetch_object() - Fetch a row as an object
- pg_fetch_result() - Returns values from a result instance
add a note
User Contributed Notes 7 notes
post at zeller-johannes dot de ¶
19 years ago
pletiplot at seznam dot cz ¶
18 years ago
Note, that when you retrieve some PG boolean value, you get 't' or 'f' characters which are not compatible with PHP bool.
eddie at eddiemonge dot com ¶
15 years ago
pg_fetch_row is faster than pg_fetch_assoc when doing a query with * as the select parameter. Otherwise, with declared columns, the two are similar in speed.
darw75 at swbell dot net ¶
23 years ago
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'>$col_value</FONT></TD>\n";
}
echo "<br>";
}
Matthew Wheeler ¶
21 years ago
Note that the internal row counter is incremented BEFORE the row is retrieved. This causes an off by one error if you try to do:
pg_result_seek($resid,0);
pg_fetch_row($resid);
you will get back the SECOND result not the FIRST.
maxnamara at yahoo dot com ¶
20 years ago
Get downlines, put them into arrays.
function get_downlines($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 $info_elements;
}
imantr at cbn dot net dot id ¶
22 years ago
I use the following code to assigning query result to an array.
while ($row = pg_fetch_row($result)) $newArray[] = $row[0];
print_r($newArray);
