PHP File Create Write

Introduction to PHP File Creation and Manipulation （PHP文件创建和操作简介）

In today’s web development landscape, PHP is one of the most widely used programming languages for server-side scripting. With PHP, you can create and manipulate files on your server to meet the demands of your website or web application. In this article, we will cover the basics of PHP file creation and manipulation. （在当今的Web开发环境中， PHP是用于服务器端脚本编写的最广泛使用的编程语言之一。使用PHP ，您可以在服务器上创建和操作文件，以满足网站或Web应用程序的需求。在本文中，我们将介绍PHP文件创建和操作的基础知识。）

Writing to a File #

Writing to a File （写入文件）

To write to a file in PHP, you can use the fopen() function. This function takes two arguments: the name of the file and the mode in which to open the file.

<?php
  $file = fopen("example.txt", "w");
  fwrite($file, "This is an example.");
  fclose($file);
?>

In this example, fopen(“example.txt”, “w”) opens the file example.txt in write mode. The fwrite() function writes the string “This is an example.” to the file, and fclose() closes the file. （在此示例中， fopen (“example.txt”, “w”)在写入模式下打开文件example.txt。fwrite ()函数将字符串“This is an example.”写入文件， fclose ()关闭文件。）

Reading from a File #

Reading from a File （从文件读取）

Reading from a file in PHP is just as easy as writing to a file. The fopen() function can be used to open a file in read mode, and the fread() function can be used to read the contents of the file. （在PHP中读取文件与写入文件一样简单。fopen ()函数可用于在读取模式下打开文件， fread ()函数可用于读取文件的内容。）

<?php
  $file = fopen("example.txt", "r");
  $contents = fread($file, filesize("example.txt"));
  fclose($file);
  echo $contents;
?>

In this example, fopen(“example.txt”, “r”) opens the file example.txt in read mode. The fread() function reads the contents of the file, and filesize(“example.txt”) returns the size of the file. Finally, the fclose() function closes the file, and the contents of the file are echoed to the web browser. （在此示例中， fopen (“example.txt”, “r”)以读取模式打开文件example.txt。fread ()函数读取文件的内容，文件大小(“example.txt”)返回文件的大小。最后， fclose ()函数关闭文件，并将文件的内容回显到Web浏览器。）

Other File Functions #

Other File Functions （其他文件功能）

PHP provides many other file functions that can be used to manipulate files, such as:

• file_get_contents(): Reads the entire contents of a file into a string

• file_put_contents(): Writes a string to a file

• file_exists(): Checks if a file exists

• unlink(): Deletes a file

• rename(): Renames a file

• copy(): Copies a file

Conclusion #

Conclusion （小结）

In this article, we have covered the basics of PHP file creation and manipulation. With these skills, you can create, read, and write files on your server to meet the demands of your website or web application. We hope this article has been helpful in your PHP journey. （在本文中，我们介绍了PHP文件创建和操作的基础知识。借助这些技能，您可以在服务器上创建、读取和写入文件，以满足网站或Web应用程序的需求。我们希望本文对您的PHP之旅有所帮助。）