php教程

sqlite_fetch_array

SQLiteResult::fetch

SQLiteUnbuffered::fetch

(PHP 5 < 5.4.0, PECL sqlite >= 1.0.0)

sqlite_fetch_array -- SQLiteResult::fetch -- SQLiteUnbuffered::fetch — Fetches the next row from a result set as an array

说明

sqlite_fetch_array ( resource $result [, int $result_type = SQLITE_BOTH [, bool $decode_binary = TRUE ]] ) : array

面向对象风格 (method):

SQLiteResult::fetch ([ int $result_type = SQLITE_BOTH [, bool $decode_binary = TRUE ]] ) : array
SQLiteUnbuffered::fetch ([ int $result_type = SQLITE_BOTH [, bool $decode_binary = TRUE ]] ) : array

Fetches the next row from the given result handle. If there are no more rows, returns FALSE, otherwise returns an associative array representing the row data.

参数

result

The SQLite result resource. This parameter is not required when using the object-oriented method.

result_type

可选的 result_type 参数接受常量，且决定返回的数组如何被索引。使用 SQLITE_ASSOC 会仅返回关联索引（已命名字段），而 SQLITE_NUM 会仅返回数值索引。SQLITE_BOTH 会同时返回关联和数值索引。SQLITE_BOTH 是此函数的默认值。

decode_binary

当 decode_binary 参数设置为 TRUE（默认值）时，PHP 会解码那些由 sqlite_escape_string() 编码后的二进制数据。通常应保留此值为其默认值，除非要与其他使用 SQLlite 的应用程序建立的数据交互。

返回值

Returns an array of the next row from a result set; FALSE if the next position is beyond the final row.

由 SQLITE_ASSOC 与 SQLITE_BOTH 返回的列名会依照 sqlite.assoc_case 配置选项的值决定大小写。

范例

Example #1 Procedural example

<?php
$dbhandle = sqlite_open('sqlitedb');
$query = sqlite_query($dbhandle, 'SELECT name, email FROM users LIMIT 25');
while ($entry = sqlite_fetch_array($query, SQLITE_ASSOC)) {
    echo 'Name: ' . $entry['name'] . '  E-mail: ' . $entry['email'];
}
?>

Example #2 Object-oriented example

<?php
$dbhandle = new SQLiteDatabase('sqlitedb');

$query = $dbhandle->query('SELECT name, email FROM users LIMIT 25'); // buffered result set
$query = $dbhandle->unbufferedQuery('SELECT name, email FROM users LIMIT 25'); // unbuffered result set

while ($entry = $query->fetch(SQLITE_ASSOC)) {
    echo 'Name: ' . $entry['name'] . '  E-mail: ' . $entry['email'];
}
?>

参见

User Contributed Notes

saleh at sfsj dot net 09-May-2004 06:12
[Editor's note: to get short column names there's an undocumented PRAGMA setting. You can exec "PRAGMA short_column_names = ON" to force that behavior.]

I noticed that if you use Joins in SQL queries, the field name is messed up with the dot!
for example if you have this query:
SELECT n.*, m.nickname FROM news AS n, members AS m WHERE n.memberID = m.id;

now if you want to print_r the results returned using SQLITE_ASSOC type, the result array is like this :
array
(
  [n.memberID] => 2
  [n.title] => test title
  [m.nickname] => NeverMind
  [tablename.fieldname] => value
)

and I think it looks horriable to use the variable ,for example, $news['m.nickname'] I just don't like it!

so I've made a small function that will remove the table name (or its Alias) and will return the array after its index is cleaned
<?php
function CleanName($array)
{
  foreach ($array as $key => $value) {
    //if you want to keep the old element with its key remove the following line
      unset($array[$key]);

   //now we clean the key from the dot and tablename (alise) and set the new element
      $key = substr($key, strpos($key, '.')+1);
      $array[$key] = $value;
  }
  return $array;
}
?>

CopyRight © 2008-2022 verySource.Com All Rights reserved.　京ICP备17048824号-1　京公网安备：11010502034788