(PHP 4, PHP 5)
pg_fetch_row — 提取一行作为枚举数组
$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。
返回的数组和提取的行相一致。如果没有更多行可提取，则返回 FALSE。
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 * FROM authors");
if (!$result) {
echo "An error occured.\n";
exit;
}
while ($row = pg_fetch_row($result, $i)) {
for ($j=0; $j < count($row); $j++) {
echo $row[$j] . " ";
}
echo "<br />\n";
}
?>
Note:
从 4.1.0 开始，
row成为可选参数。每次调用 pg_fetch_row()，内部的行计数器都会加一。
参见 pg_query()， pg_fetch_array()， pg_fetch_object() 和 pg_fetch_result()。
Note: 此函数将 NULL 字段设置为 PHP
NULL值。
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.
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.
| 版本 | 说明 |
|---|---|
| 4.1.0 |
The parameter row became optional.
|
Example #2 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";
}
?>