How to query date range in thinkphp5

In recent years, with the continuous upgrading of Internet applications, people have higher and higher requirements for website functions. For developers, an efficient and easy-to-use tool is particularly important.

As a PHP developer, everyone may be familiar with it. An excellent PHP framework can make development work easier and faster. With the release of version 5.x, ThinkPHP5 has become one of the indispensable tools in the eyes of developers.

In ThinkPHP5, querying date range has always been a common requirement. So, how to deal with date range query using ThinkPHP5?

1. Using where conditions

In ThinkPHP5, it is very convenient to use where conditions to query date ranges. Just use the where method to achieve it. For example:

$startTime = '2021-01-01';
$endTime = '2021-12-31';
$data = Db::name('table')->where('create_time', 'between', [$startTime, $endTime])->select();

Among them, create_time is the field that needs to be queried for the date range, between is the keyword indicating the query range, and the two parameters in square brackets represent the start time and end time respectively.

2. Using model methods

In the model, we can also define commonly used query methods to facilitate daily use. For example, we can define a scope method in the model for quick use when querying data.

protected function scopeCreateDateBetween($query, $startDate, $endDate)
{
    $query->whereBetweenTime('create_time', $startDate, $endDate);
}

In the process of defining the scope method, we named the method createDateBetween. Then, when using it, you only need to call this method in the model:

$data = Model::createDateBetween('2021-01-01', '2021-12-31')->select ();

This method will return data within the specified time range.

3. Use the joint table method

In some more complex query scenarios, we may need to query the data in the two tables that conforms to the time range. At this time, we You can use the joint table query method.

$data = Db::name ('table1')->alias ('t1')->join ('table2 t2', 't1.id = t2.pid')->where ('t1.create_time', 'between', [$startDate, $endDate])->select ();

This method requires the join method to associate two tables. Among them, the alias method is used to name the queried table to avoid conflicts. The time range is constrained through the where method to achieve the purpose of joint table query.

Summary

So far, we have explained three methods of querying date ranges in ThinkPHP5. By rationally using these methods, we can perform data queries more efficiently and conveniently in daily development work.

Of course, in addition to date range query, there are many skills related to ThinkPHP5 that we need to master. These skills are powerful weapons for us to improve development efficiency. Therefore, for every developer who wants to improve his development capabilities, continuous improvement through continuous learning and practice is the way to go.

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