PHP轻量级数据库操作类Medoo增加、删除、修改、查询例子

  Medoo介绍

  Medoo是一款超轻量级的PHP SQL数据库框架,由社交网站Catfan和开源项目Qatrix的创始人黎言卓开发。提供了简单,易学,灵活的API,提升开发Web应用的效率与性能,而且体积只有8KB不到。

  特性

  轻量级,只有一个文件

  简单易学,数据结构一目了然

  支持多种SQL语法,以及支持复杂的查询条件

  支持多种数据库,包括MySQL, MSSQL, SQLite等等

  安全,可防止SQL注入

  免费,基于MIT协议

  示例代码

  增加

  

复制代码 代码如下:

  $database = new medoo ( "my_database" );

  $last_user_id = $database->insert ( "account", [

  "user_name" => "foo",

  "email" => "[email protected]",

  "age" => 25,

  "lang" => [

  "en",

  "fr",

  "jp",

  "cn"

  ]

  ] );

  删除

  

复制代码 代码如下:

  $database = new medoo ( "my_database" );

  $database->delete("account", [

  "AND" => [

  "type" => "business"

  "age[<]" => 18

  ]

  ]);

  修改

  

复制代码 代码如下:

  $database = new medoo ( "my_database" );

  $database->update ( "account", [

  "type" => "user",

  // All age plus one

  "age[+]" => 1,

  // All level subtract 5

  "level[-]" => 5,

  "lang" => [

  "en",

  "fr",

  "jp",

  "cn",

  "de"

  ]

  ], [

  "user_id[<]" => 1000

  ] );

  查询

  

复制代码 代码如下:

  $database = new medoo ( "my_database" );

  $datas = $database->select ( "account", [

  "user_name",

  "email"

  ], [

  "user_id[>]" => 100

  ] );

  // $datas = array(

  // [0] => array(

  // "user_name" => "foo",

  // "email" => "[email protected]"

  // ),

  // [1] => array(

  // "user_name" => "cat",

  // "email" => "[email protected]"

  // )

  // )

  foreach ( $datas as $data ) {

  echo "user_name:" . $data ["user_name"] . " - email:" . $data ["email"] . "<br>";

  }

  // Select all columns

  $datas = $database->select ( "account", "*" );

  // Select a column

  $datas = $database->select ( "account", "user_name" );

  // $datas = array(

  // [0] => "foo",

  // [1] => "cat"

  // )