php aggregate

This article describes how to call the document recognition interface of aggregate data through PHP. prerequisites 1: Before the start, make the following preparations to use PHP to output "HelloWorld" to aggregate data and apply for a dedicated KEY

Sometimes, your blog may need such a feature: In their blog on the aggregation and display of Friends blog The latest article, so convenient for their timely understanding of friends, in addition, also facilitate visitors to find and this blog

1. Aggregation function Total number of queries. COUNT () >Db.userinfo.count ()3> Db.userinfo.Find(){ "_id":1,"name":"Uncle Guo","Sex":"male"," Age":" the" }{ "_id":2,"name":"Miss Guo","Sex":"male"," Age":"Unknown" }{

That's the thing. Before doing a mongodb search, do a good job to see the elder brother, said, "Yes, you can." Then replace him with a elasticsearch search. There was a breakdown in my heart. It is MongoDB is used to practicing AH. ES is what ghost.

Sometimes, your blog may need such a feature: In their blog on the aggregation and display of Friends blog The latest article, so convenient for their timely understanding of friends, in addition, also facilitate visitors to find and this blog

Sometimes, your blog may need such a feature: In their blog on the aggregation and display of Friends blog The latest article, so convenient for their timely understanding of friends, in addition, also facilitate visitors to find and this blog

Sometimes, your blog may need the following features: Aggregate and display the latest blogs of friends on your own blogArticleIn this way, you can learn about your friends' messages in a timely manner. In addition, you can also find the blogs

Sometimes, your blog may need such a feature: In their blog on the aggregation and display of Friends blog The latest article, so convenient for their timely understanding of friends, in addition, also facilitate visitors to find and this blog

The importance of databases in PHP The PHP field lacks a powerful tool: a language-based mathematical library. In this two-part series, PaulMeagher hopes to inspire PHP developers to develop and implement a PHP-based mathematical library by

Sometimes, your Blog may need the following features:Aggregates and displays the latest Blog articles on your own Blog, so that you can learn about your friends in a timely manner. In addition, it is also convenient for visitors to find Blog and