PHP创建SqlLite数据表并让ID自增

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/libinemail/article/details/71476395

<?php
class MyDB extends SQLite3
{
  function __construct()
  {
	 $this->open('test.db');
  }
}
$db = new MyDB();
if(!$db){
  echo $db->lastErrorMsg();
} else {
  echo "Opened database successfully\n";
}

/**
* 创建数据库
*/
$sql =<<<EOF
  CREATE TABLE test2(
	id            integer PRIMARY KEY autoincrement,
	NAME           TEXT    NOT NULL,
	AGE            INT     NOT NULL,
	ADDRESS        CHAR(50),
	SALARY         REAL
);
EOF;
$ret = $db->exec($sql);
if(!$ret){
  echo $db->lastErrorMsg();
} else {
  echo "Table created successfully\n";
}
$db->close();


/**
*数据入库
*/
$sql =<<<EOF
      INSERT INTO test2 (NAME,AGE,ADDRESS,SALARY)
      VALUES ('Paul', 32, 'California', 20000.00 );
EOF;
$ret = $db->exec($sql);
if(!$ret){
  echo $db->lastErrorMsg();
} else {
  echo "Records created successfully\n";
}
$db->close();

PHP SqlLite 类

<?php
/*
注意细节:实例化对象时传入的是数据库的路径，要是数据库不存在的话会自动创建。
*/
class sqlLite extends SQLite3{
	
	/**
	 * 数据库路径设置
	 */
	public $url;

	/**
	 * SqlLite 创建数据库
	 */
	function __construct($url)
	{
		$this->url=$url;
		$this->open($url);
	}

	function check_input($value)
	{
		if (get_magic_quotes_gpc()) {
  			$value = sqlite_escape_string($value);
		}
		return $value;
	}
	
	/**
	 * SqlLite 创建数据库
	 *
	 * create("test", 
	 *		array("id"=>"integer PRIMARY KEY autoincrement", 
	 *			"name"=>"VARCHAR(50)", 
	 *			"age"=>"INT  NOT NULL",
	 *			"article"=>"TEXT    NOT NULL")
	 *	);
	 *
	 *	$name Array 请传递数组
	 *	$type String 请传递|分割的字符串
	 */
	function create($table,$name,$type=null)
	{
		$sql = 'CREATE TABLE '.$table.'(';
		if($type==null){
			$arrname = array_keys($name);
			$arrtype = array_values($name);
		}else{
			$arrname = explode("|", $name);
			$arrtype = explode("|", $type);
		}
		for($i=0;$i<count($arrname);$i++){
			if($i==count($arrname)-1){
				$sql = $sql.$arrname[$i]."   ".$arrtype[$i]."";
			}else{
				$sql = $sql.$arrname[$i]."   ".$arrtype[$i].",";
			}
			
		}
		$sql = $sql.');';
		$re = $this->query($sql);
		if($re){
			return true;
		}else{
			return false;
		}
	}

	/**
	 * SqlLite 删除数据库
	 *
	 * $table 表名
	 */
	function drop($table)
	{
		$sql = 'DROP TABLE '.$table.';';
		$re = $this->query($sql);
		if($re){
			return true;
		}else{
			return false;
		}
	}

	/**
	 * SqlLite 插入数据
	 */
	function insert($table,$name,$value=null)
	{
		$sql = "INSERT INTO ".$table.'(';
		if($value == null){
		$arrname = array_keys($name);
		$arrvalue = array_values($name);
		}else{
		$arrname = explode('|', $name);
		$arrvalue = explode('|', $value);
		}
		for($i=0;$i<count($arrname);$i++){
			if($i==count($arrname)-1){
				$sql = $sql.$arrname[$i];
			}else{
				$sql = $sql.$arrname[$i].",";
			}
		}
		$sql = $sql.")VALUES(";
		for($i=0;$i<count($arrvalue);$i++){
			if($i==count($arrvalue)-1){
				$sql = $sql."'".$arrvalue[$i]."'";
			}else{
				$sql = $sql."'".$arrvalue[$i]."',";
			}
		}
		$sql .=");";
		$re = $this->query($sql);
		if($re){
			return true;
		}else{
			return false;
		}
	}

	/**
	 * SqlLite 删除数据
	 */
	function delete($table,$Conditionsname,$Conditionsvalue=null)
	{
		if($Conditionsvalue!=null){
			$sql = "DELETE FROM ".$table." WHERE ".$Conditionsname."='".$Conditionsvalue."';";
		}else{
			$sql = "DELETE FROM ".$table." WHERE ";
			$arrname = array_keys($Conditionsname);
			$arrvalue = array_values($Conditionsname);
			for($i=0;$i<count($arrname);$i++){
				if($i==count($arrname)-1){
					$sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
				}else{
					$sql.=$arrname[$i].'='."'".$arrvalue[$i]."',";
				}
			}
			$sql.=';';
		}
		$re = $this->query($sql);
		if($re){
			return true;
		}else{
			return false;
		}
	}

	/**
	 * SqlLite 查询数据
	 *
	 * $table String 表名
	 * $name String 查询字段
	 * $Conditionsname 查询条件
	 *
	 * select("test","id,name,age,article",array("name"=>"张三"));
	 */
	function select($table,$name,$Conditionsname,$Conditionsvalue=null)
	{
		if($Conditionsvalue!=null){
			$sql = "SELECT ".$name." FROM ".$table." WHERE ".$Conditionsname."='".$Conditionsvalue."';";
		}else{
			$sql = "SELECT ".$name." FROM ".$table." WHERE ";
			$arrname = array_keys($Conditionsname);
			$arrvalue = array_values($Conditionsname);
			for($i=0;$i<count($arrname);$i++){
				if($i==count($arrname)-1){
					$sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
				}else{
					$sql.=$arrname[$i].'='."'".$arrvalue[$i]."' and ";
				}
			}
			$sql.=';';
		}
		$ret = $this->query($sql);
		$return = array();
		while($row = $ret->fetchArray(SQLITE3_ASSOC) ){
			array_push($return, $row);
		}
		return $return;
	}

	/**
	 * SqlLite 更新数据
	 *
	 * $table String 表名
	 * $name String 修改的字段
	 * $value String 更新的值
	 * $Conditionsname 修改条件Array
	 */
	function update($table,$name,$value,$Conditionsname,$Conditionsvalue=null)
	{
		if($Conditionsvalue!=null){
			$sql = "UPDATE ".$table." SET ".$name."= '".$value."' WHERE ".$Conditionsname."='".$Conditionsvalue."';";
		}else{
			$sql = "UPDATE ".$table." SET ".$name."= '".$value."' WHERE ";
			$arrname = array_keys($Conditionsname);
			$arrvalue = array_values($Conditionsname);
			for($i=0;$i<count($arrname);$i++){
				if($i==count($arrname)-1){
					$sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
				}else{
					$sql.=$arrname[$i].'='."'".$arrvalue[$i]."' and ";
				}
			}
			$sql.=';';
		}
		$re = $this->query($sql);
		if($re){
			return true;
		}else{
			return false; 
		}
	}

	/**
	 * SqlLite 数据查询分组
	 */
	function group($table,$name){
		$sql = "SELECT ".$name." FROM ".$table.";";
		$return = array();
		$ret = $this->query($sql);
		while($row = $ret->fetchArray(SQLITE3_ASSOC) ){
			array_push($return, $row[$name]);
		}
		return $return;
	}

	/**
	 * SqlLite 数组对象转数组
	 */
	function fecthall($sql)
	{
		$return = array();
		$ret = $this->query($sql);
		while($row = $ret->fetchArray(SQLITE3_ASSOC) ){
			array_push($return, $row);
		}
		return $return;
	}
}