Its an  alias of fwrite() and writes to a file

Example

<?php

$fp = fopen(‘test.txt’, ‘w’);

fputs($fp, “phpcodez”);

fclose($fp);

?>

It format line as CSV and write to file pointer

Example

<?php

$data = array ( array(‘php’, ‘asp’, ‘jsp’, ‘js’));

$fp = fopen(‘test.csv’, ‘w’);

foreach ($data as $value) {

fputcsv($fp, $value);

}

fclose($fp);

?>

It outputs all remaining data on a file pointer

Example

<?php

$fp = @fopen(“test.txt”, “r”);

fpassthru($fp);

?>

It opens file or URL

Example

<?php

$fp = @fopen(“test.txt”, “r”);

if ($fp) {

while (($content = fgets($fp, 4096)) !== false) {

echo $content;

}

 fclose($fp);

}

?>

Match filename against a pattern

Example

<?php

$color =”phpcodez.txt”;

if (fnmatch(“*phpcode[zs].txt”, $color)) {

 echo “phpcodez”;

}

?>

Output

phpcodez

It can be used to lock the file

Example

<?php

$fp = fopen(“test.txt”, “r+”);

flock($fp, LOCK_EX); //  acquire an exclusive lock (writer).

flock($fp, LOCK_SH); // acquire a shared lock (reader).

flock($fp, LOCK_UN); // unlock the file

fclose($fp);

?>

It returns  file type

Example

<?php

echo filetype(“test.txt”);

?>

Output

file

It returns  file size

Example

<?php

echo filesize(“test.txt”);

?>

Output

31

It returns  file permissions

Example

<?php

echo fileperms(“test.txt”);

?>

Output

33279

It returns  file owner

Example

<?php

echo fileowner(“test.txt”);

?>