php读取文件与写入文件方法实例

在php中读取文件我们需要使用file_get_contents或fopen来打开文件然后再读取了，file_get_contents函数读文件比fopen要方便，写文件需要fopen函数与file_put_contents或fwrite合作才可以实例下面我来介绍下。

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php写文件的方法

实例一

代码如下	复制代码
$filename = 'test.txt'; $filename = dirname ( __FILE__ ) . '/' . $filename; if (file_exists ( $filename )) {     if (! is_writable ( $filename )) {         exit('is not writable');     }     $handle = fopen ( $filename, "a+b" );     $content = 'this is test words';     $content .= "n";     fwrite($handle, $content);     fclose ( $handle ); } else {     exit('file is not exists'); }

实例二

代码如下	复制代码
$filename = 'test.txt'; $filename = dirname ( __FILE__ ) . '/' . $filename; if (file_exists ( $filename )) {     if (! is_writable ( $filename )) {         exit('is not writable');     }     $content = 'this is test words';     $content .= "n";     file_put_contents($filename, utf8_encode($content));  } else {     exit('file is not exists'); }

php读取文件

实例一

代码如下

复制代码

$filename = 'test.txt';         $filename = dirname ( __FILE__ ) . '/' . $filename;         if (file_exists ( $filename )) {             if (! is_readable ( $filename )) {                 exit('is not readable');             }             $contents = file_get_contents($filename);             $contents = explode("n", $contents);             print_r($contents);         } else {             exit('file is not exists');         }

实例二

代码如下

复制代码

$filename = 'test.txt'; $filename = dirname ( __FILE__ ) . '/' . $filename; if (file_exists ( $filename )) {     if (! is_readable ( $filename )) {         exit('is not readable');     }     $handle = fopen ( $filename, "rb" );     $contents = fread($handle, filesize ($filename));     //$contents = stream_get_contents($handle); // 也可以用方法替换上一行     $contents = explode("n", $contents);     fclose ( $handle );     print_r($contents); } else {     exit('file is not exists'); }