It checks whether the filename is a regular file
Example
<?php
echo is_file(‘test.txt’)?”Yes”:”No”;
?>
Output
Yes
Tag Archives: file
is_executable
It checks whether the filename is executable
Example
<?php
echo is_executable(‘test.txt’)?”Yes”:”No”;
?>
Output
Yes
is_dir
It checks whether the filename is a directory
Example
<?php
echo is_dir(‘test.txt’)?”Yes”:”No”;
?>
Output
No
fwrite
It writes the string to a file
Example
<?php
$fp = fopen(“test.txt”, “w”);
$data = fwrite($fp,”phpcodez” );
fclose($fp);
?>
ftruncate
It truncates a file to a given length
Example
<?php
$fp = fopen(“test.txt”, “r”);
ftruncate($fp,5);
?>
ftell
It returns the current position of the file pointer
Example
<?php
$fp = fopen(“test.txt”, “r”);
$data = fgets($fp, 5);
echo ftell($fp);
?>
Output
4
fstat
It returns information about a file using an open file pointer
Example
<?php
$fp = fopen(‘test.txt’, ‘r’);
$stats = fstat($fp);
echo “<pre>”;
print_r($stats);
?>
Output
Array
(
[0] => 2049
[1] => 673768
[2] => 33279
[3] => 1
[4] => 1000
[5] => 1000
[6] => 0
[7] => 8
[8] => 1336732795
[9] => 1336732794
[10] => 1336732794
[11] => 4096
[12] => 8
[dev] => 2049
[ino] => 673768
[mode] => 33279
[nlink] => 1
[uid] => 1000
[gid] => 1000
[rdev] => 0
[size] => 8
[atime] => 1336732795
[mtime] => 1336732794
[ctime] => 1336732794
[blksize] => 4096
[blocks] => 8
)
fseek
It seeks on a file pointer
Example
<?php
$fp = fopen(‘test.txt’, ‘r’);
$data = fgets($fp, 2048);
fseek($fp, 0);
?>
fscanf
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);
?>
fread
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);
?>