PHP使用内置函数file_put_contents写入文件及追加内容的方法

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PHP使用内置函数file_put_contents写入文件及追加内容的方法_PHP

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May 28, 2016 pm 01:13 PM

file_put_contentsphpwrite file

本文实例讲述了PHP使用内置函数file_put_contents写入文件及追加内容的方法。分享给大家供大家参考，具体如下：

PHP 内置函数 file_put_contents 用于写入文件：

file_put_contents 函数最简单的写法，可以只用两个参数，一个是文件路径，一个是要写入的内容，语法如下：

代码如下:

file_put_contents(filepath,data)

代码如下:

file_put_contents(filepath,data,flags)

当 flags 的值为 FILE_APPEND 时，表示在已有文件上追加内容。即：第三个参数flags实现将内容追加到文件的后面，如果没有这个参数会直接覆盖以前的数据。

比如我们要在上面示例的C:\blabla\filesys\one.txt 文件上追加内容，我们可以这样写：

<html>
<body>
<&#63;php
$path ="C:\\blabla\\filesys\\one.txt";
$content = " all for one";
file_put_contents($path,$content,FILE_APPEND);
if (file_exists($path))
 {echo "ok";}
else
 {echo "ng";}
&#63;>
</body>
</html>

执行该 PHP 文件之后，我们再看 C:\blabla\filesys\one.txt 文件，发现文件内容增加了，变成了：

one for all all for one

file_put_contents 函数返回写入文件的字节数 (number of bytes) ，如果出错，返回 FALSE。

希望本文所述对大家PHP程序设计有所帮助。

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