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2019-09-06 23:53:10 +08:00
commit f0ef89dfbb
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<?php
/**
* Sqlite 预定义了类 SQLiteDatabase 本实现没有使用。
* 这里使用的全部是过程函数。
* 无论是函数还是类本实现只支持sqlite的2.x系列版本。
* php5.3新增扩展sqlite3用来支持3.x版本。
* PDO则同时支持2.x和3.x版本。
*/
class LtDbConnectionAdapterSqlite implements LtDbConnectionAdapter
{
public function connect($connConf)
{
if (isset($connConf['pconnect']) && true == $connConf['pconnect'])
{
$func = 'sqlite_popen';
}
else
{
$func = 'sqlite_open';
}
$connConf["host"] = rtrim($connConf["host"], '\\/') . DIRECTORY_SEPARATOR;
if(!is_dir($connConf["host"]))
{
if(!@mkdir($connConf["host"], 0777, true))
{
trigger_error("Can not create {$connConf['host']}");
}
}
$error = '';
$connResource = $func($connConf["host"] . $connConf["dbname"], 0666, $error);
if (!$connResource)
{
trigger_error($error, E_USER_ERROR);
}
else
{
return $connResource;
}
}
public function exec($sql, $connResource)
{
if(empty($sql))
{
return 0;
}
sqlite_exec($connResource, $sql);
// echo '<pre>';
// print_r(debug_backtrace());
// debug_print_backtrace();
// echo '</pre>';
// delete from table 结果为0原因未知。
// 使用 delete from table where 1 能返回正确结果
return sqlite_changes($connResource);
}
public function query($sql, $connResource)
{
$result = sqlite_query($connResource, $sql, SQLITE_ASSOC);
return sqlite_fetch_all($result, SQLITE_ASSOC);
}
public function lastInsertId($connResource)
{
return sqlite_last_insert_rowid($connResource);
}
public function escape($sql, $connResource)
{
return sqlite_escape_string($sql);
}
}