Calculate MD5 checksum for a file in PHP
The md5_file() function is an inbuilt function in PHP which is used to generate the md5 hash value of a given file. This function returns a string on success otherwise it returns FALSE.
<?php
// PHP program to illustrate
// md5_file()
function $gfg = md5_file("gfg.txt");
echo $gfg;
?>
Output
1d4e50ae1992ad8adf2f7bb6ee4dd0cd
With optional parameter $raw with different values TRUE and FALSE.
<?php
// PHP program to illustrate
// md5_file() function
// Without optional parameter
echo md5_file("gfg.txt") . "\n";
// with optional parameter
$raw = FALSE (by default)
// no changes in result
echo md5_file("gfg.txt", FALSE) . "\n";
// with optional parameter
$raw = TRUE
// result changed
echo md5_file("gfg.txt", TRUE) . "\n";
?>
Output
1d4e50ae1992ad8adf2f7bb6ee4dd0cd
1d4e50ae1992ad8adf2f7bb6ee4dd0cd ????/{??M??
1d4e50ae1992ad8adf2f7bb6ee4dd0cd ????/{??M??