how do i compare 3 multidimensional array?

diana_253

lets say i have this array

$g_res[1] = array("www.petronas.com.my",'Welcome to Petronas...');
$g_res[2] = array("www.utp.edu.my",'University Technology Petronas');

$y_res[1] = array("www.petronas.com.my",'Petronas Sdn Bhd Homepage');
$y_res[2] = array("www.klcc.com",'Highest twin tower in Malaysia');

$a_res[1] = array("www.hoover.com",'Suggested link');
$a_res[2] = array("www.petronas.com.my",'Malaysia's company...');

how do i compare between two array so that i can eliminate the element that have similar value?? let say i want to compare g_res with y_res ..g_res[1] has similar values with y_res[1]..i want to eliminate y_res[1] not g_res[1]..so as a_res[2]...

rite now my problem to find for the similar string..i've been using strcmp() and strpos() but that give me unstable results...

if(strcmp($y_res[$i][0],$a_res[$j][0])!==FALSE){ //if found same..
this one..NOT SIMILAR return found...SIMILAR of coz return found..

if(strpos($y_res[$i][0],$a_res[$j][0])!==FALSE){ //if found same
this one if NOT SIMILAR STRING return not found..but if SIMILAR STRING it still return not found..how come..

what should i used to compare 2 multidimensional array values?

laserlight

Why cant you combine all 6 into one array?

diana_253

because it is hard to compare all those...i have 10 elements per array..i did try to combine..but unfortunately its not working very well..

i've posted another thread regarding the filtering the combined array..but seems no one can help me..so i switch the solution..

laserlight

You need to change the way you get the results in the first place.

Conceptually, you have arrays that consist of 2 elements. The first element is the domain name, and the second is some text related to it in some way. If you can generate it such that these arrays are all part of one array, then filtering the arrays become much simpler.

diana_253

actuall the one that i wrote is just to illustrate..my real array is like this..all the array got consistent arrangement of values...

$g_res[$i] = array($g_URL[$i],$g_arr[$i],'Google');
$y_res[$i] = array($y_URL[$i],$y_arr[$i],'Yahoo'); 
$a_res[$i] = array( $a_URL[$i],$a_array[$i],'Altavista');

ok now...say like google results and yahoo results rite..basically there will be similar URL between these two search engine..say g_res[1] is got similar URL with y_res[2]...and because i just retrieve only the first page(top ten)..there will be no duplucate results from the same search engine..like g_res[1] with other g_res[$i]..

that's why i just need to compare like that..i were to compare all of it that will be a waste..i think laa..

so basically ..

if g_res[1] == y_res[1]
unset(y_res[1]);
then move on to ...
if g_res[1] == a_res[3];
unset(a_res[3]);

if g_res[2] != y_res[2]
then move on to y_res[3]..until found the same URL of end of y_res[]..before move on to a_res...

i hope i make this clear..

here my coding..but it is not yet working...
maybe u can give some comment.. 🙂
i want to make it recursive..

$counter = count($y_res);
$i=$j=$x=1;
	Rec($y_res, $a_res,$i,$j);
	function Rec($y_res, $a_res,$i,$j){
		//COMPARING GOOGLE AND YAHOO
		echo $y_res[$i][0]."<br>".$a_res[$j][0]."<br>";
		if(strcmp($y_res[$i][0],$a_res[$j][0])!==FALSE){ // if found the similar string 
			//unset($a_res[$j]);
			if($i<=count($y_res)){
				Rec($y_res, $a_res,$i++,$j);
			}
			else{
				break;
			}


	}
	else{ //else not found
		if($j<=count($a_res)){
			Rec($y_res, $a_res,$i,$j++);
		}
		else{
			break;
		}
	}//end else for google and yahoo=for found

	//return will b all the array..
}

diana_253

owh..and because i have problems with google array..so i just test my coding comparing yahoo and altavista..

laserlight

Basically, you want the list of all unique websites listed by the search engines researched?

diana_253

yeah..i want that..unique websites listed by all there search engine..

list all results without any repitition URL..something like that..

i tried to used array_unique()..but failed coz that is for similar values in same array..this one similar values with other array..

laserlight

Loop through the domain names in each search engine array and add them to another array. Apply array_unique() to this new array.