PHP 5.6.24 is released

pg_fetch_row

(PHP 4, PHP 5, PHP 7)

pg_fetch_row提取一行作为枚举数组

说明

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

pg_fetch_row() 根据指定的 result 资源提取一行数据(记录)作为数组返回。每个得到的列依次存放在数组中,从偏移量 0 开始。

Note: 此函数将 NULL 字段设置为 PHP NULL 值。

参数

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 or NULL, the next row is fetched.

返回值

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

返回的数组和提取的行相一致。如果没有更多行 row 可提取,则返回 FALSE

更新日志

版本 说明
4.1.0 参数 row 成为可选参数。

范例

Example #1 pg_fetch_row() 例子

<?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";
}
 
?>

参见

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User Contributed Notes 7 notes

up
1
pletiplot at seznam dot cz
10 years ago
Note, that when you retrieve some PG boolean value, you get 't' or 'f' characters which are not compatible with PHP bool.
up
0
eddie at eddiemonge dot com
6 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.
up
0
post at zeller-johannes dot de
11 years ago
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).
up
0
Matthew Wheeler
13 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.
up
0
darw75 at swbell dot net
14 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>";
  }
up
-1
maxnamara at yahoo dot com
11 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;
}
up
-5
imantr at cbn dot net dot id
14 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);
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