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php -- 文件读写

2024-07-05 23:36:37   228人阅读

----- 024-file.php -----

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4     <meta http-equiv="content-type" content="text/html; charset=utf-8">
 5     <title>文件处理</title>
 6 </head>
 7 <body>
 8 <h2>文件处理</h2>
 9 <pre>
10 <?php
11     $f_zzz = iconv(‘utf-8‘, ‘gbk‘, ‘D:\a\res\txt\复姓UTF-8.txt‘);
12     $fp_zzz = fopen($f_zzz, ‘r‘); //打开文件，返回文件句柄
13     $arr_zzz = file($f_zzz); // 文件 => 数组
14     $str_zzz = file_get_contents($f_zzz); // 文件 => 字符串
15     $arr_temp = explode(‘ ‘, preg_replace(‘#\s+#‘, ‘ ‘, $str_zzz));
16     var_dump($arr_temp);
17     echo fread($fp_zzz, 100), "\n"; // 读取文件的100个字节
18     echo fgetc($fp_zzz), "\n"; //读取一个字符
19     echo fgets($fp_zzz), "\n"; //读取一行
20     echo fgetss($fp_zzz), "\n"; //读取一行，过滤HTML PHP标记
21     var_dump(fgetcsv($fp_zzz)); echo "\n"; //读取一行，过滤HTML PHP标记
22     echo fpassthru($fp_zzz);echo "\n"; // 读取剩余文件
23     echo readfile($f_zzz); //读取全部文件
24     fclose($fp_zzz);
25 ?>
26 </pre>
27 </body>
28 </html>

----- 025-file_write.php -----

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4     <meta http-equiv="content-type" content="text/html; charset=utf-8">
 5     <title>写文件</title>
 6 </head>
 7 <body>
 8 <h2>写文件</h2>
 9 <pre>
10 <?php
11     $f_zzz = iconv(‘utf-8‘, ‘gbk‘, ‘D:\a\res\txt\php写文件测试.txt‘);
12     $fp_zzz = fopen($f_zzz, ‘w‘);
13     file_put_contents($f_zzz, "欲穷千里目\n"); //写入一个字符串
14     fwrite($fp_zzz, "白日依山尽\n");
15     fwrite($fp_zzz, "黄河入海流\n");
16     fputs($fp_zzz, "更上一层楼\n");
17     echo "当前文件指针位置：", ftell($fp_zzz), "\n";
18     fseek($fp_zzz, 32); //移动文件指针到第三行开头
19     fwrite($fp_zzz, "欲穷千");
20     fseek($fp_zzz, -9, SEEK_CUR); //指针前移一行
21     fwrite($fp_zzz, "长太息以掩涕兮\n");
22     rewind($fp_zzz);
23     fwrite($fp_zzz, "窗含西岭千秋雪");
24 
25 
26 
27 
28 
29     fclose($fp_zzz);
30     echo "文件内容：\n".file_get_contents($f_zzz);
31 ?>
32 </pre>
33 </body>
34 </html>


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