最近在使用laravel-excel导出表格的时候，发现假如字段值为0的情况下，导出的excel中直接显示为空，找到一个方法解决，如下.
在laravel-excel的config配置中修改一个设置
/*
|--------------------------------------------------------------------------
| Enab...
2-02 153 views
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写了一个简单的类实现
使用方法
$class = new RedisDelayQueue();
$class->execute();
<?php
namespace app\common\service;
class RedisDelay
{
protected $prefix = 'delay_queue:';
protected $redis = null;
protected $key = �...
11-07 387 views
写了一个简单的类实现
使用方法
$class = new RedisDelayQueue();
$class->execute();
<?php
namespace app\common\service;
class RedisDelay
{
...
txt文件格式如下
13000000000,13000000005,13000000403,13001010129,13001010688,13001010838,13001016389,13001019538,13001030005,13001042700,13001047495,13001049871,13001072727,13001086166,13001103598,13001108955,13001119191,13001119326,13001119381,130...
2-25 821 views
txt文件格式如下
13000000000,13000000005,13000000403,13001010129,13001010688,13001010838,13001016389,13001019538,13001030005,13001042700,13001047495...
<?php
use Carbon\CarbonPeriod;
$period = CarbonPeriod::create('2018-06-14', '2018-06-20');
// Iterate over the period
foreach ($period as $date) {
echo $date->format('Y-m-d') ."\n";
}
//result
2...
9-03 1,218 views
<?php
use Carbon\CarbonPeriod;
$period = CarbonPeriod::create('2018-06-14', '2018-06-20');
// Iterate over the period
fore...
1.创建商品和订单表模拟商品交易操作
fa_goods商品表,stock商品库存,test_order=订单表
2.添加一个测试商品数据(商品数量为150个)
测试并发购买的方法(golang)
package main
import (
"fmt"
"net/http"
"sync"
)
fun...
6-21 1,652 views
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执行命令
$ yum install epel-release
$ rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
$ dnf install -y https://rpms.remirepo.net/enterprise/remi-release-8.rpm
查看php源列表
$ dnf module list php
CentOS-8 - AppStream...
5-16 1,916 views
执行命令
$ yum install epel-release
$ rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
$ dnf install -y https://rpms...
php魔术方法
__get( $property ) 当调用一个未定义的属性时访问此方法
__set( $property, $value ) 给一个未定义的属性赋值时调用
__isset( $property ) 当在一个未定义的属性上调用isset()函数时调用此方法
__unset( $property ) 当在一个未定义的属性上调...
4-19 1,410 views
php魔术方法
__get( $property ) 当调用一个未定义的属性时访问此方法
__set( $property, $value ) 给一个未定义的属性赋值时调用
__isset( $proper...
参考：https://learnku.com/articles/15176/laravel-implementation-of-kafka-message-push-and-receive-processing
安装
安装librdkafka 库
git clone https://github.com/edenhill/librdkafka.git
./configure
make
sudo make install
安装rdkafka
sudo pecl insta...
4-09 1,091 views
参考：https://learnku.com/articles/15176/laravel-implementation-of-kafka-message-push-and-receive-processing
安装
安装librdkafka 库
git clone https...
github仓库地址
官方文档： https://github.com/Seldaek/monolog/blob/main/doc/01-usage.md
安装
$ composer require monolog/monolog
使用方法
<?php
use Monolog\Logger;
use Monolog\Handler\StreamHandler;
// 创建一个日志频道,name可以是自己自定义的key...
2-26 1,566 views
github仓库地址
官方文档： https://github.com/Seldaek/monolog/blob/main/doc/01-usage.md
安装
$ composer require monolog/monolog
使用方法
<?php
us...