Matching arrays

[maliary]

 

Hi,

 

I've got a bit of a problem with two arrays.

 

arrayA (1,2,3,4,5)

 

arrayB (4,1,3,5,2)

 

I need to match the two arrays without sorting any array. So the values should remain as they are. For every value in arrayA,I have to search through it every value in arrayB.

 

arrayA (1,2,3,4,5)

 

arrayB (4,1,3,5,2)

 

 

This is  part of a bigger system and sorting the two arrays and matching them up is a solution but it won't work well with the rest of the system.

[GingerRobot]

What are you actually trying to achieve? Are you just trying to check each element of array 1 to see if it exists in array 2?

[jitesh]

<?php

$ar1 = array(1,2,3,4,5);
$ar2 = array(4,1,3,5,2);

if(!array_diff($ar1,$ar2)){
echo "All values of ar1 are available in ar2";
}else{
echo "All values of ar1 are not available in ar2";
}
?>

[maliary]

 

 

GingerRobot,

 

 

The comparison is used thus:

 

where  this - if ($row['nr'] == $arl2[$counterup]) - is true, then the name is printed out.

 

  $row['nr'] is arrayB and $arl2[$counterup] is arrayA.

 

  $row['nr'] is ordered by pip and array elements can be added or removed.

 

  $value[$counterup] holds values.

 

  If $row['nr']  and $arl2[$counterup]  dont match up then wrong names and values appear.

 

$peg = $db-> execute ("SELECT nr,name FROM table_name ORDER BY pip");

while ($row = $peg -> FetchRow())

{

 

if ( $arl2[$counterup]== $row['nr'] )

{

echo '<td>'.$row['name'].'</td>';

echo '<td>'.$value[$counterup].'</td>';

}

 

 

}

 

 

[sasa]

is it what you want

<?php
$arrayA = array('sasa', '123', 'asd', 'ppp');
$arrayB = array('asd', 'sasa', 'ddd', '123', 'popo', 'ppp');
foreach ($arrayB as $nr) {
echo 'Value: "', $nr;
if (count($key = array_keys($arrayA, $nr)) > 0) echo '" exist in arrrayA with key ', $key[0], '<hr />';
else echo '" not exist in arrrayA.<hr />';
}
?>

[maliary]

 

Ok, guys this is the situation

 

What is actually required is that:-

 

Each and every individual value in arrayA is searched through all the values in arrayB

 

For instance

The array value 1 of arrayA is matched with 4 returns false, then with 1 it returns true because they match.

 

arrayA (1,2,3,4,5)

 

arrayB (4,1,3,5,2)

 

It goes through all.

 

 

[GingerRobot]

Well, im not entirely sure of the point, but something like this should do:

 

<?php
$array1= array(1,2,3,4,5);
$array2 = array(4,1,3,5,2);
foreach($array1 as $v){
foreach($array2 as $v2){
	if ($v==$v2)
		echo "TRUE $v = $v2 <br />";
	else
		echo "FALSE $v does not equal $v2 <br />";			
}
}
?>

[trq]

<?php

 $arrayA = array(1,2,3,4,5);
 $arrayB = array(4,1,3,5,2);

 foreach ($arrayA as $a) {
   if (in_array($a,$arrayB) {
     echo "$a found\n";
   } else {
     echo "$a not found\n";
   }
 }

?>