如何在PHP中逐行读取大文件?
我们将使用一些文件操作逐行读取一个大文件并显示出来。
- 读取文件:我们将使用fopen()函数读取文件。该函数用于读取和打开文件。
句法:
fopen("filename", access_mode);
范围:
- 文件名:文件名是文件的名称
- access_mode:是文件的模式,包括r-读模式和w-写模式。
- 遍历文件末尾:我们可以使用feof()函数进行遍历。该函数用于遍历到文件末尾。
句法:
feof($file)
范围:- $file:这是文件名
逐行获取数据:我们可以使用fgets()方法逐行获取数据。
句法:
fgets($file)
范围:
- $file:这是文件名
示例:让我们考虑数据存储在“myfile.txt”中的文件。下面是逐行读取文件并显示的PHP代码。
PHP
";
}
?>
myfile.txt: “myfile.txt”的内容如下:
Python is a high-level, general-purpose and a very popular programming language. Python programming language (latest Python 3) is being used in web development, Machine Learning applications, along with all cutting edge technology in Software Industry. Python Programming Language is very well suited for Beginners, also for experienced programmers with other programming languages like C++ and Java. Machine Learning is the field of study that gives
computers the capability to learn without being explicitly programmed. ML is one of the most exciting technologies that one would have ever come across. As it is evident from the name, it gives the computer that makes it more similar
to humans: The ability to learn. Machine learning is actively being used today, perhaps in many more places than one would expect.
输出: