It parses input from a file according to a format

Example

<?php

$fp = fopen(“test.txt”, “r”);

while ($data = fscanf($fp, “%tn%sn”)) {

list ($name, $profession, $countrycode) = $data;

}

fclose($fp);

?>

It can be used to read the content from a file

Example

<?php

$fp = fopen(‘test.txt’, ‘r+’);

echo fread($fp,filesize(“test.txt”));

fclose($fp);

?>

It finds pathnames matching a pattern

Example

<?php

foreach (glob(“*.txt”) as $file) {

  echo $file;

}

?>

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