大匠

基于const常量理解個中類型的內存分配引入參考 官方：Constant expressions may contain only constant operands and are evaluated at compile time. Using constants can often be mo Read More

class Father{ public static function getStatic(){ return new static(); } public static function getSelf(){ return new self(); } } trait GrandFather{ p Read More

yum -y install mysql Read More

需求：想使用下邊的樣式但是使用yii中的表單樣式會 <?= $form->field($model, 'attribute_code')->textInput()->label('attribute代碼名稱') ?> 帶有大量無用的div和clas樣式，想要自定義可以通過ActiveForm中的fi Read More

獲取某一列數據 更新操作 updateInternal不需要驗證 updateCounters您可以使用 updateCounters()更新一個或多個計數列；參考 Note that this method differs from updateAllCounters() in that it o Read More

window版curl https://curl.haxx.se/download.html window版memcache http://pecl.php.net/package/memcache/3.0.8/windows window版memcached https://github.com/ Read More

Warning: simplexml_load_string(): Entity: line 432: parser error : EntityRef: expecting ';' character is used in XML to insert a character reference w... Read More

PHP Warning: PHP Startup: in Unknown on line 0這種情況是因為擴展路徑有問題導致的路徑或錯，或沒有該擴展但ini中開啟了此擴展 Read More

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select * from testsort order by sort desc ,status desc; sort字段為第一排序選擇，status為第二排序選擇 Read More