アプリ関連ニュース

[Laravel] データベースマイグレーション シーダー編

今回はLaravelの「シーダー」(Seeder)機能を使用して初期データの投入をおこなう方法を紹介します。

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File Operations in PHP

I will talk about file operations in PHP( handling , read, write etc.). Lets take a look at reading file first.

As an example we have a file called test.txt and if we want to read the contents within the file, can simply do like this.

But what if we want to handle more than reading a file, we can use fopen

We can also get the first line in file using fgets

We can also use feof to check whether the file reaches to the end.

If we want to check whether file exists or not , we can do like this

By Yuuma.



PHP Static methods

I will talk about static methods usages in php with some code samples. Lets get started.

Here is a sample, calling static function outside of the class.

We can also call within the class like this using self::

You can also call static methods from another class like this

You can choose any ways depending upon the situations, the result will still be the same.

By Yuuma



[Laravel] 設定ファイル「.env」の切り替えについて

単一のLaravelプロジェクトにおいてURLのパス指定により、データベースの接続先やsessionを切り分けたい場合を考えてみます。

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Constants In PHP Object Oriented Programming

Today I will talk about constants which are very useful in development. Before we dive into code samples, there are a few things you have to remember.

  1. – It is declared inside a class with the const keyword.
  2. – They are case-sensitive. It’s better to name them all upper case letter for best practice.
  3. – We can access them back outside of the class with this operator (::)

Let’s see a simple constant and it has been called outside of the class.

And also we can access the constant within the class like this using self keyword.

By Yuuma




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