This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. http://www.gnu.org/licenses/gpl.html About: I searched a function to compare arrays and the array_diff() was not specific enough. It ignores the order of the array-values. So I reimplemented the diff-function which is found on unix-systems but this you can use directly in your code and adopt for your needs. Simply adopt the formatline-function. with the third-parameter of arr_diff() you can hide matching lines. Hope someone has use for this. Contact: d.u.diff@holomind.de **/ function arr_diff( $f1 , $f2 , $show_equal = 0 ) { $c1 = 0 ; # current line of left $c2 = 0 ; # current line of right $max1 = count( $f1 ) ; # maximal lines of left $max2 = count( $f2 ) ; # maximal lines of right $outcount = 0; # output counter $hit1 = "" ; # hit in left $hit2 = "" ; # hit in right while ( $c1 < $max1 # have next line in left and $c2 < $max2 # have next line in right and ($stop++) < 1000 # don-t have more then 1000 ( loop-stopper ) and $outcount < 20 # output count is less then 20 ) { /** * is the trimmed line of the current left and current right line * the same ? then this is a hit (no difference) */ if ( trim( $f1[$c1] ) == trim ( $f2[$c2]) ) { /** * add to output-string, if "show_equal" is enabled */ $out .= ($show_equal==1) ? formatline ( ($c1) , ($c2), "=", $f1[ $c1 ] ) : "" ; /** * increase the out-putcounter, if "show_equal" is enabled * this ist more for demonstration purpose */ if ( $show_equal == 1 ) { $outcount++ ; } /** * move the current-pointer in the left and right side */ $c1 ++; $c2 ++; } /** * the current lines are different so we search in parallel * on each side for the next matching pair, we walk on both * sided at the same time comparing with the current-lines * this should be most probable to find the next matching pair * we only search in a distance of 10 lines, because then it * is not the same function most of the time. other algos * would be very complicated, to detect 'real' block movements. */ else { $b = "" ; $s1 = 0 ; # search on left $s2 = 0 ; # search on right $found = 0 ; # flag, found a matching pair $b1 = "" ; $b2 = "" ; $fstop = 0 ; # distance of maximum search #fast search in on both sides for next match. while ( $found == 0 # search until we find a pair and ( $c1 + $s1 <= $max1 ) # and we are inside of the left lines and ( $c2 + $s2 <= $max2 ) # and we are inside of the right lines and $fstop++ < 10 # and the distance is lower than 10 lines ) { /** * test the left side for a hit * * comparing current line with the searching line on the left * b1 is a buffer, which collects the line which not match, to * show the differences later, if one line hits, this buffer will * be used, else it will be discarded later */ #hit if ( trim( $f1[$c1+$s1] ) == trim( $f2[$c2] ) ) { $found = 1 ; # set flag to stop further search $s2 = 0 ; # reset right side search-pointer $c2-- ; # move back the current right, so next loop hits $b = $b1 ; # set b=output (b)uffer } #no hit: move on else { /** * prevent finding a line again, which would show wrong results * * add the current line to leftbuffer, if this will be the hit */ if ( $hit1[ ($c1 + $s1) . "_" . ($c2) ] != 1 ) { /** * add current search-line to diffence-buffer */ $b1 .= formatline( ($c1 + $s1) , ($c2), "-", $f1[ $c1+$s1 ] ); /** * mark this line as 'searched' to prevent doubles. */ $hit1[ ($c1 + $s1) . "_" . $c2 ] = 1 ; } } /** * test the right side for a hit * * comparing current line with the searching line on the right */ if ( trim ( $f1[$c1] ) == trim ( $f2[$c2+$s2]) ) { $found = 1 ; # flag to stop search $s1 = 0 ; # reset pointer for search $c1-- ; # move current line back, so we hit next loop $b = $b2 ; # get the buffered difference } else { /** * prevent to find line again */ if ( $hit2[ ($c1) . "_" . ( $c2 + $s2) ] != 1 ) { /** * add current searchline to buffer */ $b2 .= formatline ( ($c1) , ($c2 + $s2), "+", $f2[ $c2+$s2 ] ); /** * mark current line to prevent double-hits */ $hit2[ ($c1) . "_" . ($c2 + $s2) ] = 1; } } /** * search in bigger distance * * increase the search-pointers (satelites) and try again */ $s1++ ; # increase left search-pointer $s2++ ; # increase right search-pointer } /** * add line as different on both arrays (no match found) */ if ( $found == 0 ) { $b .= formatline ( ($c1) , ($c2), "-", $f1[ $c1 ] ); $b .= formatline ( ($c1) , ($c2), "+", $f2[ $c2 ] ); } /** * add current buffer to outputstring */ $out .= $b; $outcount++ ; #increase outcounter $c1++ ; #move currentline forward $c2++ ; #move currentline forward /** * comment the lines are tested quite fast, because * the current line always moves forward */ } /*endif*/ }/*endwhile*/ return $out; }/*end func*/ /** * callback function to format the diffence-lines with your 'style' */ function formatline($nr1, $nr2, $stat, &$value) #change to $value if problems { if (trim($value) == '') return ''; switch ($stat) { case '=': #return $nr1. " : $nr2 : = ".htmlentities( $value ) ."
"; return '= '.$value.''."\n"; break; case '+': #return $nr1. " : $nr2 : + ".htmlentities( $value ) ."
"; return '+ '.$value.''."\n"; break; case '-': #return $nr1. " : $nr2 : - ".htmlentities( $value ) ."
"; return '- '.$value.''."\n"; break; } } /** * END CODE FROM: * http://www.holomind.de/phpnet/diff.src.php */ // pull the content via curl, allow for basic authorization function curl_website($url, $username = NULL, $password = NULL) { if (preg_match('/^http:\/\//i',$url)) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); if(!is_null($username) && !is_null($password)) { curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization: Basic '.base64_encode($username.':'.$password))); } $data = curl_exec($ch); curl_close($ch); return $data; } else { return FALSE; } } /** * START CODE FROM: * http://ca3.php.net/manual/en/function.phpinfo.php#77692 */ // parse phpinfo (in HTML format) into an array function phpinfo_to_array($data) { $a = $mtc = array(); if (preg_match_all('/(.*?)<\/td>(.*?)<\/td>(:?(.*?)<\/td>)?<\/tr>/',$data,$mtc,PREG_SET_ORDER)) { foreach($mtc as $v) { if ($v[2] == 'no value') continue; $a[$v[1]] = $v[2]; } } return $a; } /** * END CODE FROM: * http://ca3.php.net/manual/en/function.phpinfo.php#77692 */ // compare two different phpinfos $site1 = 'http://example.com/phpinfo.php'; $site2 = 'http://example.com/phpinfo-2.php'; // if required, use curl_website($site1,username,password); $data1 = curl_website($site1); $data2 = curl_website($site2); $array1 = phpinfo_to_array($data1); $array2 = phpinfo_to_array($data2); /* * pull the content, turn it into an array and compare */ echo '
';

#echo '
array1
';
#print_r($array1); // for debugging

#echo '
array2
';
#print_r($array2); // for debugging

echo '
Compare Two phpinfo() Files
';

echo '
Comparison between '.$site1.' and '.$site2.'
';

// side-by-side comparison
echo '
side-by-side comparison
';
foreach ($array1 as $key => $value)
{
	echo ''.$key.''."\n";
	echo 'array1: '.$value."\n";
	echo 'array2: '.$array2[$key]."\n";
	if ($value != $array2[$key])
	{
		echo 'diff'."\n";
		echo arr_diff(array($value), array($array2[$key]));
	}
	echo "
";
}

echo '
'; ?>