[rani]

hi
i need to know how to compare the contents of the 2 file in php.
2 files may be a text file or anyother file.
something like diff commnad in linux.
in linux command if we give
diff file1 file2
then show the conents if difference present.
else nothing.
do any such thing present in php too.
if no then how to compare the content of 2 file.
shd we write a code the one in c prg does?
thanks

[optix]

Hi,

You depending on the content of the files, you could read the contents into an array and us array_diff()

Check it out on php.net: http://us2.php.net/manual/en/function.array-diff.php

[YourPHPPro]

Originally Posted by rani

hi
i need to know how to compare the contents of the 2 file in php.

If you just want to know whether the two files are the same or not, you could use the following snippet:

Code:

$crc1 = strtoupper(dechex(crc32(file_get_contents($file1))));
$crc2 = strtoupper(dechex(crc32(file_get_contents($file2))));

if ($crc1!=$crc2) {
// files not the same
} else {
// files the same
}

[rani]

hi
i am running php 4.2.2-17 and i think anything >= 4.3 this function works.
i got a error saying
undefined function call file_get_contents in ..

i have a 2 files.
the 2nd file may be a part of the original file or same as the original as original.

the file size ranging from 5.7k to 204 k bytes.

how can i check this file, wh has anything and everything charater, i mean to say that this file has charater, numeric, newline, tab, noncharater also.
so just by putting the value in the array will not work, b'cos each charater has to be check.

can any one help me out.
thanks

[NeverMind]

if file_get_contents() doesn't work for you then use the old method ..

PHP Code:

$fp = fopen($file1, 'r');

$content = fread($fp, filesize($file1));

fclose($fp);



$fp = fopen($file2, 'r');

$content2 = fread($fp, filesize($file2));

fclose($fp);



//USE YourPHPPro script here.. 

[rani]

Thanks
i was competely out of my mind,
i didn't really think about this one
thanks a lot.
rani

Originally Posted by NeverMind

if file_get_contents() doesn't work for you then use the old method ..

PHP Code:

$fp = fopen($file1, 'r');

$content = fread($fp, filesize($file1));

fclose($fp);



$fp = fopen($file2, 'r');

$content2 = fread($fp, filesize($file2));

fclose($fp);



//USE YourPHPPro script here..