ThinkPHP? ??? ??? ???? PHP ?????? ???? ????? ?? ?? PHP ????????. ? ???????? ???? ????? ??? ?????. ThinkPHP ?????? ?? ?? ? ??? ?? ??? ?????. ?? ???? ThinkPHP?? ?? ??? ???? ??? ???????.

?? ThinkPHP? ? ?? ?? ??? ??? ????? ???? ???. ??? ??????? ??? ??? ????, ????? ??????? ?? ??? ?????. ?? ??? ????? ?? ??? ???? ???? ???? ?? ??? ???? ???.

????? ?? ??? ?? ? ????.

1. ?? ??? ???? ??? ???? ???? ????. ?? ?????? sum() ???? ?? ??? ???? ??? ? ????.
2. sum() ???? ?? ??? ??? ??? ??? ?????. ????? ???? ?? ???? ?? ??? ??? ?? ??? ?? ????? ???? ???.
3. ??? ???? ??? ???? ?? ??? ?? ???? ?????. ThinkPHP??? ??? ???? ??? ??? ??? ? ????.

?? ???? ??? ???????.

1. ? ???? ??? ???

?? ?????? ? ???? ???? ???. app/controller/ ????? Sum.php? ?? ? ???? ??? ?? ?? ?? ??? ?? ??? sum() ???? ??? ? ????.

namespace?app\controller;

use?app\model\DemoModel;

class?Sum
{
????public?function?sum()
????{
????????//?在這里進(jìn)行求和計(jì)算
????????return?['result'?=>?$sum];
????}
}

2. ??? ?? ???? ?? ??? ??? ?????

????? sum() ????? ??? ?? ???? ?? ??? ??? ???? ???. ??? ??? ?? ??????? ???? ???? ? ?????. ???? "Zhang San"??? ???? ?? ??? ???? ?? DemoModel??? ??? ?????.

namespace?app\model;

use?think\Model;

class?DemoModel?extends?Model
{
????protected?$table?=?'demo';

????public?function?getAgeByUserName($name)
????{
????????return?$this->where('name',?$name)->value('age');
????}
}

Model ?????? ??? ???? ???? ?? ??? ???? getAgeByUserName() ???? ??????. ? ???? "Zhang San"??? ???? ?? ??? ?????.

3. ??? ???? ?? ?? ?? ??

??? ??? ??? ??? ???? ??? ???? ?? ?? ??? ??? ? ????. ? ???? ??? ??? ?? ??? ???? ???.

namespace?app\controller;

use?app\model\DemoModel;

class?Sum
{
????public?function?sum()
????{
????????//?引入數(shù)據(jù)模型
????????$demoModel?=?new?DemoModel;

????????//?查詢張三、李四、王五的年齡信息
????????$zhangsan?=?$demoModel->getAgeByUserName('張三');
????????$lisi?=?$demoModel->getAgeByUserName('李四');
????????$wangwu?=?$demoModel->getAgeByUserName('王五');

????????//?對(duì)年齡信息進(jìn)行求和計(jì)算
????????$sum?=?$zhangsan?+?$lisi?+?$wangwu;

????????//?返回計(jì)算結(jié)果
????????return?['result'?=>?$sum];
????}
}

? ???? DemoModel ??? ???? "Zhang San", "Li Si", "Wang Wu"?? ???? ?? ??? ???? ??? ??????. ????? ?? ??? ???? ?? ? ???? ?????.

????? ThinkPHP? ?? ??? ?? ??? ????. ?? ?? ????? ?? ??? ? ??? ?? ??. ??? ??? ThinkPHP?? ?? ??? ???? ??? ?? ?? ? ??????? ? ? ???? ? ??? ? ? ?? ?? ?????.

? ??? ThinkPHP?? ?? ??? ???? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!