PHP file operation, _php tutorial

PHP file operation,

　Fstat function: Displays all the information of a file

$file _path = "test.php"; if ($fp=fopen($file _path, "A +"))    {$file _info=Fstat( $fp );     Echo "
";     Print_r ($file _info);     Echo "
";     Echo "File size is". $file _info [' Size '];     Echo "File last access Time". Date ("Y-m-d h:i:s",$file _info[' Mtime ']);} fclose ($fp);    // be sure to close

　　Second, file read:

//The first type:$con=fread($fp,filesize($file _path));$con=Str_replace("\ r \ n", "
",$con);Echo"File content is".$con;//the second type: Read all the files$con=file_get_contents($file _path);$con=Str_replace("\ r \ n", "
",$con);Echo"File content is".$con;//Third: A period of reading$buffer= 1024; //for the security of the download, it is best to read the counter using File bytes$file _count= 0;//feof used to determine whether a file is read to the end of a document while(!feof($fp) && ($file _size-$file _count>0)){$file _data=fread($fp,$buffer);//How many bytes did the statistic read ?$file _count+$buffer;Echo $file _data; }

　　Third, write the file:

   // 1. Traditional methods to write files    $file _path = "Test.txt";     if (file_exists($file _path)) {        $fpfopen($file _path , "A +")        ; // Open Mode: A + is an additional content. The w+ is covered by the original.         $con = "hello!\r\n";         fwrite ($fp,$con);         Echo "Added successfully! ";    } Else {        echo "file does not exist"    ;    } fclose ($fp);     // 2, the second method of writing to the file    $file _path= "Test.txt";     $con = "Hi Beijing!" \ r \ n ";     file_put_contents ($file _path,$con,file_append);     echo  " Success ";

　　Iv. Application of file operation:

// you can manipulate the INI file. Write the server's configuration in the INI file, and then manipulate it.     DBC.  INI    host=192.168.0.1    Admin=admin    password=123456    demo.  PHP    
 
   php        $conparse_ini_file("Dbc.ini");         Print_r ($con);            ? >    // The data in the INI file is read as an array and can be manipulated. 

　　V. Copy files:

if (! Copy ("E:\\test.txt", "D:\\1.txt")) {    echo "fail";} Else {    echo "Success";}

　　Vi. Creating files

To create a folder:

// $path = "E:\\happy";  Folder path $path// Multilevel folder if(!  Is_dir($path)) {    if(mkdir($path, 0777,True ) {        echo "Success";    } Else {        echo "fail";    }} Else {    echo "folder already exists";}

　　To create a file:

$file _path = "E:\\happy.txt"; $fp fopen ($file _path, "w+"); fwrite ($fp, "Hello"); fclose ($fp);

Vii. Deletion of files:

To delete a folder:

$path // Multilevel Folders if (rmdir($path)) {    echo "Success";} // rmdir can only delete empty folders, files or directories under the folder cannot be deleted. 

To delete a file:

$file _path = "E:\\happy.txt"; if (is_file($file _path)) {    if(unlink($file _path ) {        echo "Success";    } Else {        echo "fail";    }} Else {    echo "file does not exist";}

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