PHP:imagecopyresampled()的用法_GD库图像处理函数
161
2023-12-15
(PHP 4, PHP 5)
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
pg_query() - 执行查询 pg_fetch_array() - 提取一行作为数组 pg_fetch_object() - 提取一行作为对象 pg_fetch_result() - 从结果资源中返回值
