大匠

基于const常量理解个中类型的内存分配引入参考 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：想使用下边的样式但是使用yii中的表单样式会 <?= $form->field($model, 'attribute_code')->textInput()->label('attribute代码名称') ?> 带有大量无用的div和clas样式，想要自定义可以通过ActiveForm中的fi Read More

获取某一列数据 更新操作 updateInternal不需要验证 updateCounters您可以使用 updateCounters()更新一个或多个计数列；参考 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这种情况是因为扩展路径有问题导致的路径或错，或没有该扩展但ini中开启了此扩展 Read More

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select * from testsort order by sort desc ,status desc; sort字段为第一排序选择，status为第二排序选择 Read More