如何打开文本文件并使用 php 以追加样式写入它？
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How to open textfile and write to it append-style with php?
提问by Chris_45
How do you open a textfile and write to it with php appendstyle
你如何打开一个文本文件并用 php appendstyle 写入它
textFile.txt
//caught these variables
$var1 = $_POST['string1'];
$var2 = $_POST['string2'];
$var3 = $_POST['string3'];
$handle = fopen("textFile.txt", "w");
fwrite = ("%s %s %s\n", $var1, $var2, $var3, handle);//not the way to append to textfile
fclose($handle);
回答by Gumbo
To append data to a file you would need to open the file in the append mode (see fopen):
要将数据附加到文件，您需要以附加模式打开文件（请参阅 参考资料fopen）：
- 'a'
Open for writing only; place the file pointer at the end of the file. If the file does not exist, attempt to create it.- 'a+'
Open for reading and writing; place the file pointer at the end of the file. If the file does not exist, attempt to create it.
- 'a'
只开放写；将文件指针放在文件末尾。如果该文件不存在，请尝试创建它。- 'a+'
开放读写；将文件指针放在文件末尾。如果该文件不存在，请尝试创建它。
So to open the textFile.txtin write only appendmode:
因此，要打开TextFile.txt的中只写追加方式：
fopen("textFile.txt", "a")
But you can also use the simpler function file_put_contentsthat combines fopen, fwriteand fclosein one function:
但是您也可以使用file_put_contents将fopen,fwrite和组合fclose在一个函数中的更简单的函数：
$data = sprintf("%s %s %s\n", $var1, $var2, $var3);
file_put_contents('textFile.txt', $data, FILE_APPEND);
