PHP Common File Operation method

<?phpheader ("Content-type: text/html; charset=utf-8"); ########## #init ################ $file = '/ Users/m/sites/demo/test.php '; $dir  = '/users/m/sites/demo '; $deldir  = '/users/m/sites/demo/js '; ######### # #文件属性操作 ################/* file properties get *///getfilepro ($file);/* File path related *///getpathinfo ($file);/* Disk size *///echo  Tosize (Disk_total_space ('/')); ########## #文件目录操作 ################/* directory Traversal *///globdir ($DIR);/* Directory Traversal *///foreachdir ($ DIR);/* Delete file or folder *///deldir ($DELDIR);/* Move   rename *///rename ($deldir, '/users/m/sites/demo/js-marvin ');/* Copy directory *// /copydir ('/users/m/sites/demo/js ', '/users/m/sites/demo/js-back '); ########## #文件创建删除 ################/* Creating a directory */// mkdir (' Marvin ', 0644);/* Delete empty directory *///rmdir (' Marvin ');/* Delete file *///unlink (' Marvin ');/* Create Empty file *///touch (' Marvin.txt '); # # # # # ###### #文件打开方式 ################/* Read */////$handle =fopen ("{$_server[' document_root ']}/marvin.txt", ' r ');//$handle = fopen (' http://www.baidu.com ', ' r ');/* Write *///$handle =fopen ("Ftp://user:[email protected]/marvim.txt", ' w ');/*  t file files  b binary file &nBSP; default is t * r     read-only open   file pointer to file header  * r+    read/write mode open   file pointer to file header    Keep original file contents   write from scratch replace  * w     write open      file pointer to the file header, non-existent files are worn pieces  , clear the original file contents  * w+    Read and write mode open   file pointer to file header, nonexistent file to wear the pieces   Clear Original file content  * a     write open   file pointer to tail, count starting from 0   not present to create  * a+     read/write mode open, file pointer to tail, count starting from 0   Not present create  * x     create and open as write, file pointer pointing to file header if file exists , the failure  * x+    create and open read-write, the file pointer to the file header, if the file exists, fails  * *//* close *///fclose ($handle); # # # ####### #文件写入方式   must be written to open ################//$handle =fopen (' marvin.txt ', ' r+ ');//fwrite ($handle, ' worldaaaa '); ######### #文件读 ################//$handle =fopen (' Marvin.txt ', ' R '),//while (!feof ($handle))       //determine if there is data    data return False    No data return True//    echo fgetc ($handle); &NBSP;//FGETC: read one character at a time  Read a pointer move once       fgets: read one line at a time//echo fread ($handle, FileSize (' marvin.txt '));   //The second parameter is the file length//while (!feof ($handle))//    echo fread ($handle, 1024); ####### # # # #文件指针操作 ################/* Move pointer position *///fseek ($handle, 2);               //fseek ($handle, -20,seek_end);/* Initializes the pointer *///rewind ($handle);/* Returns the current position of the pointer *///echo  ftell ($handle);/* returns pointer for content *///echo fgets ($handle), ########## #不用打开文件   file read/write ################//file_ Put_contents (' Marvin.txt ', "Handsome handsome \", file_append);//Append:file_append    Lock: Lock_ex//echo file_get _contents (' Marvin.txt ');   //remote file can read//readfile (' http://www.baidu.com ');//Read remote file//$FILEARR  =  File (' Marvin.txt ');//split by row ########## #文件锁 ################//read lock:  lock_sh//write Lock:  lock_ex//release Lock:  lock_un Prevent clogging:   lock_sh+lock_nb     lock_ex+lock_nb//flock ($handle, LOCK_EX);// Flock ($handle, lock_un);Function getfilepro ($file) {    if (file_exists ($file))     {         echo  ' file type is   '. FileType ($file). ' <br> ';        echo  ' file Size '. Tosize (FileSize ($file)). ' <br> ';         if (is_readable ($file))              echo  "file readable <br>";         if (Is_writable ($file))              echo  "file writable <br>";         if (Is_executable ($file))             echo  "File executable <br>";         echo  Create time  . Date (' Y-m-d h:i:s ', Filectime ($file)). ' <br> ';        echo "Access time  ". Date (' Y-m-d h:i:s ', Fileatime ($file)). ' <br> ';        echo  ' modify time  . Date (' Y-m-d h:i:s ', Filemtime ($file)). ' <br> ';    }else    {         echo  ' file does not exist ';     }}function getpathinfo ($file) {     echo  ' file name is    '. basename ($file, '. php '). ' <br> ';//The second parameter defaults to null   file name  test    echo  ' file directory location '. DirName ($file). ' <br> ';//file directory location/users/m/sites/demo    var_dump (PathInfo ($file));} Function globdir ($dir) {    // var_dump (Glob ($dir. '/*.php '));      $it  = new directoryiterator ("glob://{$dir}./*.php");     foreach ($it  as  $f)     {        printf ("%s: %. 1fk\n ",  $f->getfilename (),  $f->getsize ()/1024);        echo  ' <br> ';     }}function foreachdir ($dir, $leve =0, $mark =true) {    static    $static _dir;    if (!is_dir ($dir)  && !is_file ($dir))          return false;    if (Is_file ($dir))      {        echo  "File: ". $dir. ' <br> ';         return true;    }    if   ($mark)          $static _dir = rtrim ($dir, '/');      $dirDesource  = opendir ($dir);     readdir ($dirDesource);//  .    readdir ($dirDesource);//      while ($filename =readdir ($dirDesource)) &NBSP;&NBSP;&NBSP;&NBsp {         $dir  = trim ($dir);          $dir  = rtrim ($dir, '/');         $file   =  $dir. '/' $filename;         if (Is_dir ($file)) {             if ($dir = = $static _dir )                   $leve =0;             echo str_repeat ('---', $leve). " Catalog:  ". $file. ' <br> ';             foreachdir ($file, + + $leve, FALSE);         }        else             echo str_repeat ('---', $leve). " File:  ". $file. ' <br> ';  &Nbsp;  }    closedir ($dirDesource);} Function deldir ($dir) {     $dir  = rtrim ($dir, '/');     if (!file_exists ($dir))         die (' File not present ');     if (IS _file ($dir))         unlink ($dir);     $dirResource  = opendir ($dir);     readdir ($dirResource);     readdir ($ Dirresource)     while ($filename =readdir ($dirResource))     {          $filename = $dir. '/'. $filename;         if (Is_dir ($filename))              Deldir ($filename);        else             unlink ($filename);    &nbSP;}     closedir ($dirResource);     rmdir ($dir);} Function copydir ($SRC, $DST) {     $src =rtrim ($src, '/');     $DST = RTrim ($DST, '/');     if (File_exists ($DST))     {         if (!is_dir ($DST))              die ('   destination file exists, not directory, cannot copy ')  ;    }else         mkdir ($DST);     $dirResource  = opendir ($SRC);     readdir ($dirResource);     readdir ($dirResource);     while ($file = Readdir ($dirResource))     {         $srcfile = $src. ' /'. $file;         $dstfile = $dst. ' /'. $file;         if (Is_dir ($srcfile)) &nbsP;           copydir ($srcfile, $dstfile);         else             copy ($srcfile, $dstfile);     }    closedir ($dirResource);} /* * 1tb=10**10 gb=10**20 mb=10**30kb=10**40b=8*10**40bit * * */function  tosize ($size) {     $units = ';     $s = ';     if ($size  > pow (2,40))     {         $s =$ Size/pow (2,40);         $units = ' TB ';     }elseif   ($size  > pow (2,30))     {          $s = $size/pow (2,30);         $units = ' GB ';     } elseif  ($size  > pow(2,20))     {         $s = $size/pow (2,20);          $units = ' MB ';    }elseif  ($size  > pow (2,10) )     {         $s = $size/pow (2,10);          $units = ' KB ';    }else    {          $s = $size;         $units = ' Bypes ';    }     $s =round ($s, 2);    return  $s. $units;}

PHP Common File Operation method