看到一个例子,打开文件有写到一个rb,这个是什么意思？

Question

$fp = fopen('./text.txt', 'rb');
while(!feof($fp)) {
    echo fgets($fp); //读取一行
}
fclose($fp);

Answer 1

I saw an example. When opening a file, an rb was written to it. What does this mean? -PHP Chinese website Q&A-I saw an example where an rb was written to a file when opening it. What does this mean? -PHP Chinese website Q&A

Please watch and learn.

Answer 2

它是代表二进制的意思。只有r表示只读方式打开，rb表示只读方式打开一个二进制文件