Php md5 file
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PHP function md5_file
This function calculates the MD5 hash of a file. The result of the md5_file() function is the MD5 Message-Digest and this message intended for digital signature application.
Syntax md5_file
- file: file name to be calculated
- raw: True (Raw 16 character binary format), False (Default: 32 characters hex number)
md5_file(file,raw)
Example 1
- Generate an md5-digest for a file.
<?php $filename ="test1.txt"; $md5file = md5_file($filename); echo $md5file; ?>
Output
e9d7777a6b1f68baa097cae474512d05
Example 2
- Check whether the file md5-digest message is matched its original file.
<?php
$filename = "test1.txt";
$md5_test1 = 'e9d7777a6b1f68baa097cae474512d05';
$md5file = md5_file($filename);
if ($md5_test1 == $md5_test1) {
echo 'This digest-message is correct, and the file is fine!';
} else {
echo 'This file has been modified from its original';
}
?>
Output
This digest-message is correct, and the file is fine!
Example 3
<?php $filename ="test1.txt"; $md51 = md5_file($filename,TRUE); $md52 = md5_file($filename,FALSE); echo $md51 . '<br/>'; echo $md52 . '<br/>'; ?>
Output
é×wzk�hº —ÊätQ-� e9d7777a6b1f68baa097cae474512d05
