Question

我可以从/读取同一个文件吗？如果是的话，你能解释一下吗？该怎么做

Answer 1

$file = "./test.txt"; 
// open file at the beginning.
$fh = fopen($file, 'r+'); 
//read the first line of the file. (advances pointer to the second line).
$contents = fread($fh); 
// modify contents.
$new_contents = str_replace("hello world", "hello", $contents); 
// make sure you're back at the 0 index.
fseek( $file, 0 );
// write
fwrite($fh, $new_contents); 
// close.
fclose($fh); 
// done!

Answer 2

在PHP 5中file_put_contents是最简单的方法：

<?php
$file     = 'people.txt';
$current  = file_get_contents($file); // Open the file to get existing content
$current .= "John Smith\n";           // Append a new person to the file
file_put_contents($file, $current);   // Write the contents back to the file
?>

Answer 3

file_put_contents("write.txt",file_get_contents("read.txt"));

Answer 4

这是一些文档。您可以在这些函数中看到可以使用的所有参数。

PHP文件读写

4 个答案: