PHP File Information

PHP File Information

• Get file information is very important.
• File Size, Access time, update time, and modify time
• File access such file readable, executable, and writable.

List of functions

filectime(filename) ; // file change time
fileatime(filename) ; // file access time 
filemtime(filename) ; // file update time

file_exists(filename);   // file exists
is_executable(filename); // file is executable
is_readable(filename);   // file is readable

is_file(filename);       // check it is file
file_size(filename);     // get file size

Example 1

• Make sure you have create a text file and name it as book.txt.
• Note: When you run this progrma, you will a different result.

<?php

$my_file = 'book.txt';
getFileInfo($my_file);

function getFileInfo($filename) {
	if (!file_exists($filename)) {
		echo "$filename does not exist <br/>";
	}
	$exec_f = (is_executable($filename) ? "yes" : "no");
	$write_f = (is_writable($filename) ? "yes" : "no");
	$read_f = (is_readable($filename) ? "yes" : "no");
	$a_f = (is_file($filename) ? "yes" : "no");
	$d_f = (is_dir($filename) ? "yes" : "no");
	echo "$filename is .. <br/>";
	echo "Executable: " . $exec_f . "<br/>";
	echo "Writable: " . $write_f . "<br/>";
	echo "Readable:" . $read_f . "<br/>";
	echo "Is A file:" . $a_f . "<br/>";
	echo "Is A Directory:" . $d_f . "<br/>";
	echo "File Change time: " . date("D, Y M d g:i A", filectime($filename)) . "<br/>";
	echo "File Access time: " . date("D, Y M d g:i A", fileatime($filename)) . "<br/>";
	echo "File Update time: " . date("D, Y M d g:i A", filemtime($filename)) . "<br/>";
	echo "File Size: " . filesize($filename) . "bytes or " . (filesize($filename) / 1023) . "M<br/>";
	echo "File Permission: " . substr(base_convert(fileperms($filename), 10, 8), 3);
}
?>

Output

book.txt is .. 
Executable: no
Writable: yes
Readable:yes
Is A file:yes
Is A Directory:no
File Change time: Tue, 2012 May 15 5:27 PM
File Access time: Tue, 2012 May 15 5:27 PM
File Update time: Tue, 2012 May 15 5:27 PM
File Size: 8bytes or 0.0078201368523949M
File Permission: 666

Related Links

• PHP File Access and File Templates
• PHP Tutorial
• Tutorial Home

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