PHP: file system

<span><?php </span><span>if</span>($fp<span>=</span><span><em>fopen</em></span>(<span>"I:/Test/abc.txt"</span>,<span>"r"</span>)){ $file_info<span>=</span><span><em>fstat</em></span>($fp); <span>echo </span><span>"<pre class="brush:php;toolbar:false">"</span>; <span><em>print_r</em></span>($file_info); <span>echo </span><span>"
"; echo "the size of file is -- {$file_info['size']}"; echo "the modify time is -- ".date("Y-m-d H:i:s",$file_info['mtime']); echo "
"; echo fileatime("I:/Test/abc.txt"); }else{ echo "No Such File Exists"; } fclose($fp); $file_path="I:/Test/bbc.txt"; //首先判断文件是否存在； if(file_exists($file_path)){ //为移植性考虑，强烈建议在用 fopen() 打开文件时总是使用 'b' 标记 $fp=fopen($file_path,"rb"); $con=fread($fp,filesize($file_path)); echo "the content of file is:
"; //转换换行符； $con=str_replace(PHP_EOL,"
",$con); echo $con; }else{ echo " no file exists"; } fclose($fp); //*********第二种读取方式*********************** //file_get_contents函数会读取整个文件内容（内存足够大），并且会自动关闭指针； $con=file_get_contents($file_path); $con=str_replace(PHP_EOL,"
",$con); echo "
".$con; //**********第三种读取方式，循环读取********* $fp=fopen($file_path,'rb'); $buffer=10; $str=""; while(!feof($fp)){ $str.=fread($fp,$buffer); } echo $str; fclose($fp);
//以数组形式输出配置文件；对数据库链接有用； //格式与php.ini相同； $arr=parse_ini_file("db.ini"); print_r($arr);

The above has introduced PHP: File System, including aspects of it. I hope it will be helpful to friends who are interested in PHP tutorials.