文件操作（2） ... echo fread($file, $filesize); //获取文件全部内容 $file = fopen($filename, "w"); //以写模式打开文件 fwrite($file, "Hello, world! "); //写入第一行 ...
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FOPEN File OPEN 文件打开
Because fopen returns False on failure, this will ensure that file processing happens only if the file opens successfully.
由于失败时fopen将返回False，这将确保仅当文件成功打开后才执行文件处理。
For any of these methods, you go through the standard process of using fopen to open the file, a function to read the data, then fclose to close the file, as shown in Listing 1.
对于这些方法中的任何一种，通过使用fopen(用于读取数据的函数)的标准方法打开文件，然后使用fclose关闭文件，如清单1所示。
Skipping ahead to the end of Listing 1, fclose serves the opposite function of fopen: it closes the connection to the file or URL.
向前跳至清单1的末尾，fclose将实现与fopen相反的功能：它将关闭指向文件或URL的连接。
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