PHP:File Functions In Php

File Functions In Php

PHP:File Functions In Php:

 Basename():   this function returns the file name from a path.

              Basename(path[,suffix]);

Where path argument specifies the path to check and suffix argument specifies a file extensions. If the file name has this extension , the file extension willnot show.

Copy(sourcefile , target files) : this function copies a file and returns TRUE on success and FALSE on failure.if the destination file already exists , it will be over written.

Dirname(path) : this function returns the directory name from a path.

Disk-free-space(directory)/diskspace(directory):  this function returns the free space in bytes of the soecified directory.

Disk-total-space(directory):  

<?php

$path="c:/xampp/htdocs/india.txt";

$fname= basename($path);

$fname = basename($path,".txt");

echo "file name=".$fname."<br>";

$dname = dirname($path);

echo "directory name=".$dname."<br>";

$res = copy("india.txt","india1.txt");

if($res)

    echo "file copied!!!<br>";

echo "disk free space in c:drive-".  disk_free_space("C:/")."bytes";

OutPut:

?>

file name=india

directory name=c:/xampp/htdocs

file copied!!!

disk free space in c:drive-34333818880bytes

fgetss():

                 this function returns a line with html and php tags removed, from an open file. The  fgetss() function stops returning on a new line , at the specified length,or at EOF which never comes first. This function returns FALSE on Failure.

 fgetss(file resource[,length,tags])

where length argument specifies the member of bytes to read. Default is 1024 bytes and”tags” attribute specifies tags that will not be removed.

<?php

$fp = fopen("india.txt","r") or exit("unabel to open file!!!");

while(!feof($fp))

{

   // $str = fgetss($fp);

    $str = fgetss($fp,1024,"<ins><font>");

    echo $str."<br>";

}

fclose($fp);

?>

File-exists(path):  this function checks whether or not a file or directory exists.

<?php

$a = file_exists("india.txt");

if($a)

    echo "<h1> file exists";

else

    echo "<h1>file not exists";

?>

OutPut:

file exists

file-get-contents(path):  this function reads a file contents into a string.

File-put-contents(filename,data):  this function writes a string to a file. This function returns the number of bytes/characters returns to the file.

Fielatime(filename):  this function returns the last access time of the specified file and it returns the timestamp[in seconds from 1970 jan 1^st onwards].

Filectime(filetime) :  this function returns the creation time as time stamp.

Filegroup(filename):  this function returns the groupID of the specified file.

Filesize(filename)

Filetype(filename): thie function returns the file type of a specified file or directory and it returns one of the seven possible values on success or False on failure.

Possible return values:  fifo, char, dir , block, link, file , unknown.

<?php

echo "<h1>";

$str = file_get_contents("india.txt");

echo $str."<br>";

$str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

$n = file_put_contents("alpha.txt", $str);

echo " no.of chars written to file=".$n."<br>";

date_default_timezone_set("Asia/Calcutta");

$c= filectime("india.txt");

$cdate = date("1,ds-M-y::H:i:s",$c);

echo "india.txt is created on - ".$cdate."<br>";

echo "file group -".  filegroup("india.txt")."<br>";

echo "file type -" .  filetype("images")."<br>";

echo "file size = ".  filesize("alpha.txt")."bytes";

?>

OutPut:

no.of chars written to file=26

india.txt is created on - 1,0438-Oct-12::10:33:38

file group -0

file type -dir

file size = 26bytes

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