legend2---开发常用语句

legend2---开发常用语句

一、总结

一句话总结：

其实敲代码都是很类似的，比如ajax，模型等等，敲代码就是一个由生到熟的过程

1、ajax？

$.post("{:url('broadcast.index/require_broadcast')}", {need_money: need_money} ,function (data) {

页面

 1 <script>
 2     function require_broadcast(){
 3         $.post("{:url('broadcast.index/require_broadcast')}", {need_money: need_money} ,function (data) {
 4             //console.log(data);
 5             if(parseInt(data.operation_num)==4){
 6                 main_content.touben_heroes=data.touben_heroes;
 7                 //console.log(data);
 8                 //更新school
 9                 f_mian_header.school=data.school;
10                 main_content.school_time=data.school_time;
11                 console.log(main_content.school_time);
12             }else{
13                 if(parseInt(data.operation_num)==3) alert('支付失败');
14                 if(parseInt(data.operation_num)==2) alert('服务器错误');
15                 if(parseInt(data.operation_num)==1) alert('连接成功');
16                 if(parseInt(data.operation_num)==0) alert('连接失败');
17                 if(parseInt(data.operation_num)==0) alert('免费刷新条件不满足');
18 
19             }
20         });
21     }
22 </script>

控制器

 1     public function require_broadcast(){
 2         $back_data=[];
 3         $back_data['operation_num']=0;//表示连接失败
 4         if(request()->isAjax()){
 5             $back_data['operation_num']=1;//表示连接成功
 6 
 7 
 8             //die;
 9             return $back_data;
10         }
11         return $back_data;
12     }

2、事务处理？

Db::startTrans();
Db::commit();
Db::rollback();
 1 //19、测试事务操作
 2 public function test18(){
 3     Db::startTrans();
 4     $ans1=db('myself_goods')->delete(6);
 5     $ans2=db('myself_goods')->delete(5);
 6     if($ans1&&$ans2){
 7         // 提交事务
 8         dump('commit');
 9         Db::commit();
10     }else{
11         // 回滚事务
12         Db::rollback();
13         dump('rollback');
14     }
15 }
16 
17 //18、测试事务操作
18 public function test17(){
19     // 启动事务
20     Db::startTrans();
21     try{
22         $ans1=db('myself_goods')->delete(6);
23         $ans2=db('myself_goods')->delete(7);
24         dump('$ans1:  '.$ans1);
25         dump('$ans2:  '.$ans2);
26         // 提交事务
27         dump('commit');
28         Db::commit();
29     } catch (Exception $e) {
30         // 回滚事务
31         Db::rollback();
32         dump('rollback');
33     }
34 }

3、页面重新加载？

location.reload();
location.reload();

4、if语句的简约代码写法？

用数组
1     //将英雄的灵根数字字符串转化为汉子数组
2     public static function reikiRootNormalize($reikiRoot){
3         $reiki=['金','木','水','火','土','风','冰','雷','光','暗'];
4         $reikiRoot=explode(',',$reikiRoot);
5         foreach ($reikiRoot as $key => &$val){
6             $val=$reiki[intval($val)-1];
7         }
8         return $reikiRoot;
9     }

还有比如判断等级的

1 //计算英雄境界
2 function calcHeroGrade($grade){
3     $gradeLevel=["练气","筑基","金丹","元婴","出窍","化神","练虚","合体","大乘","渡劫","仙人"];
4     $gradeSmallLevel=["前期","前期","前期","中期","中期","中期","后期","后期","后期","巅峰"];
5     $level='';
6     $level.=$gradeLevel[intval($grade/10)];
7     $level.=$gradeSmallLevel[intval($grade%10)];
8     return $level;
9 }

比如判断升级灵力的

 1     //$reikiGrowth：表示灵气成长
 2     public static function getGradeReiki($grade,$reikiGrowth){
 3         //dump($reikiGrowth);die;
 4         $rate=[1.02,1.06,1.12,1.03,1.07,1.13,1.04,1.08,1.14,1.3];
 5         $num=100*$reikiGrowth/1000;
 6         $sum=0;
 7         for($i=0;$i<$grade;$i++){
 8             $sum+=$num;
 9             $num*=$rate[($i+10)%10];
10         }
11         $sum+=$num;
12         $ans=[];
13         $ans['num']=intval($num);//$grade哪一级的升级经验
14         $ans['sum']=intval($sum);//$grade那一级的总经验
15         return $ans;
16     }

5、文字存进数据库转码和解码？

转码：addslashes(htmlspecialchars($data['a_content_art1']));
解码：stripslashes(htmlspecialchars_decode($article['a_content_art1']));

转码

$data['a_content_art1']=addslashes(htmlspecialchars($data['a_content_art1']));

解码（这个不行，要一一对应）

$article['a_content_art1']=stripslashes(htmlspecialchars_decode(stripslashes($article['a_content_art1'])));

这个

$val['bq_stem_info']=stripslashes(htmlspecialchars_decode($val['bq_stem_info']));

 

6、正则查找和正则替换？

查找：preg_match_all($pattern, $question['bq_answer'], $keywords);
替换：preg_replace($pattern,'', $question['bq_answer_clue']);

查找

$pattern='/<h5s*?.*?>(.*?)</h5>/us';
preg_match_all($pattern, $question['bq_answer'], $keywords);
if(isset($keywords[1][0])){

替换

//2.2 确定答案对应的线索：去掉关键词
$pattern='/<h5s*?.*?>(.*?)</h5>/us';
$question['bq_answer_clue']=preg_replace($pattern,'', $question['bq_answer_clue']);

7、返回ajax模板？

$back_data=[];
$back_data['operation_num']=0;
//3、鉴定装备
    public function identify_equipment(){
        $back_data=[];
        $back_data['operation_num']=0;//表示连接失败
　　　$back_data['operation_num_info']='';//表示返回信息　 
        if(request()->isAjax()){
            $back_data['operation_num']=1;//表示连接成功
            $e_id=input('e_id');//装备id
            //dump($e_id);
            $h_id=input('h_id');//英雄id
            if(!intval($e_id)||!intval($e_id)){
                $back_data['operation_num']=6;//没有可鉴定装备或没有可鉴定装备英雄
                return $back_data;
            }

            Db::startTrans();
            //1、支付灵石
            $equipment=db('equipment')->alias('e')->join('school_equipment se','se.se_e_id=e.e_id','LEFT')->
            join('template_equipment te','e.e_te_id=te.te_id','LEFT')->find($e_id);
            //dump($equipment);die;
            if(!isset($equipment['e_sold_price'])||!isset($equipment['se_num'])||$equipment['se_num']<1){
                $back_data['operation_num']=7;//装备数量不够
                return $back_data;
            }
            $need_money_num=intval($equipment['e_sold_price']/2);
            if($need_money_num<25) $need_money_num=25;
            if(!appindexmodelmoneypayAutoPay::pay($need_money_num)){
                $back_data['operation_num']=3;//支付失败
                return $back_data;
            }

            //2、支付活力
            $base_exp=appindexmodelupgradeGetGradeReiki::getGradeReiki($equipment['te_limit_grade'])['sum'];
            $need_vigour_num=intval($base_exp*$equipment['e_type_grade']*30/100/3);
            if(!appindexmodelheropayPayVigour::pay_heroVigour($h_id,$need_vigour_num)){
                $back_data['operation_num']=5;//英雄活力不够
                return $back_data;
            }

            //3、鉴定装备操作：（鉴定装备，原装备数减1，如果装备数为0，就删除这条装备）
            $identify_ans=appindexmodelequipmentidentifyIdentifyEquipment::identify_equipment($equipment);

            if($identify_ans!==false){
                $back_data['operation_num']=4;//操作成功
                Db::commit();
            }else{
                $back_data['operation_num']=2;//服务器错误
                Db::rollback();
            }


            //步骤三：将英雄石信息返回到页面
            $school_equipments=appindexmodelequipmentfull_infoGetSchoolEquipments::get_schoolEquipment_fullInfo();
            $school=appindexmodelschoolfull_infoGetSchoolFullInfo::get_schoolFullInfo();
            $back_data['school_equipments']=$school_equipments;
            $back_data['school']=$school;

        }
        return $back_data;
    }

页面

        //1、鉴定装备：e_id为装备id，h_id为英雄id
        function identify_equipment(){
            //步骤一：获取装备id和英雄id
            var e_id=$('#identify_equipment_e_id').val();
            var h_id=$('#identify_equipment_h_id').val();
            console.log(e_id);
            console.log(h_id);
            if(!parseInt(e_id)||!parseInt(h_id)) alert('没有可鉴定装备或没有可鉴定装备英雄！！');
            else{
                $.post("{:url('school.warehouse/identify_equipment')}", { e_id: e_id,h_id: h_id} ,function (data) {
                    console.log(data);
                    if(parseInt(data.operation_num)==4){
                        f_mian_header.school=data.school;
                        main_content.school_equipments=data.school_equipments;

                        //console.log(data);
                    }else{
                        if(parseInt(data.operation_num)==7) alert('装备数量不够！！');
                        if(parseInt(data.operation_num)==6) alert('没有可鉴定装备或没有可鉴定装备英雄！！');
                        if(parseInt(data.operation_num)==5) alert('英雄活力不够');
                        if(parseInt(data.operation_num)==3) alert('灵石不够，支付失败');
                        if(parseInt(data.operation_num)==2) alert('服务器错误');
                        if(parseInt(data.operation_num)==1) alert('连接成功');
                        if(parseInt(data.operation_num)==0) alert('连接失败');
                    }
                });
            }


        }
        //2、使用装备-->

8、layer.js使用？

直接在函数中套用提供的代码即可
<script>
    function layer_goods(content_id){
        console.log(content_id);
        layer.open({
            type: 0,
            title: [
                '物品信息',
            ]
            ,content: $('#'+content_id).html()
            ,anim: 'up'
        });
    }
</script>

二、内容在总结中

 
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原文地址：https://www.cnblogs.com/Renyi-Fan/p/10616319.html