sqlite的一个类
文章分类：PHP5研究[新]
其实还是个半成品,想写个多用户的blog(以前写过的,可数据丢失了),顺便试用下sqlite,就写了个这样的类,不过我水平有限,错误处理还没弄好,有些我的系统暂时不要用的函数没加进去,如sqlite_changes,还有些加进去的功能也没规范的用到如sqlite_last_insert_rowid,大家看看有没有什么问题,我再改,谢谢!
enjoy it!
PHP代码
<?php
/*@http://sfcube.net*/
class sqlite {
private $sqlite;
private $query;
private $arary;
public $error_msg = "";
public $isOpen = false;
public function __construct () {
$this->sqlite = null;
$this->query = null;
$this->error_msg = "";
$this->isOpen = false;
}
/*
public function __destruct () {
$this->close ();
}
*/
public function close () {
if (is_resource ($this->sqlite)) {
@sqlite_close ($this->sqlite);
$this->isOpen = false;
}
}
public function fetch_array ($sqlite_query = null) {
if (is_null ($sqlite_query)) {
$query = $this->query;
} else {
$query = $sqlite_query;
}
/*
if ($this->array = @sqlite_fetch_array ($this->query, SQLITE_BOTH)) {
return $this->array;
} else {
echo $this->last_error ($this->error_msg);
return false;
}
*/
return sqlite_fetch_array ($query, SQLITE_BOTH);
}
public function last_insert_id () {
return sqlite_last_insert_rowid ($this->sqlite);
}
public function num_rows ($sqlite_query = null) {
if (is_null ($sqlite_query)) {
$query = $this->query;
} else {
$query = $sqlite_query;
}
return sqlite_num_rows ($query);
}
public function open ($filename, $mode = 0666) {
$this->error_msg = "";
if ($this->sqlite = @sqlite_open ($filename, $mode, $this->error_msg)) {
$this->isOpen = true;
return true;
} else {
return false;
}
}
public function query ($sql) {
$this->error_msg = "";
if ($this->query = @sqlite_query ($this->sqlite, $sql)) {
return $this->query;
} else {
echo $this->last_error ($this->error_msg);
return false;
}
}
public function query_first ($sql) {
return $this->fetch_array ($this->query($sql));
//return sqlite_array_query ($sql, $this->sqlite, SQLITE_BOTH);
}
public function last_error (&$error_str = "") {
$return = sqlite_last_error ($this->sqlite);
$error_str = sqlite_error_string ($return);
return "<p>".$error_str." in ".__FILE__." on line ".__LINE__.".</p>";
}
}
?>
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