I have some data in this format:
even--heaped<br />
even--trees<br />
hardrocks-cocked<br />
pebble-temple<br />
heaped-feast<br />
trees-feast<br />
and I want to end up with an output so that all lines with the same words get added to each other with no repeats.
even--heaped--trees--feast<br />
hardrocks--cocked<br />
pebbles-temple<br />
i tried a loop going through both arrays but its not the exact result I want. for an array $thing:
Array ( [0] => even--heaped [1] => even--trees [2] => hardrocks--cocked [3] => pebbles--temple [4] => heaped--feast [5] => trees--feast )
for ($i=0;$i<count($thing);$i++){
for ($j=$i+1;$j<count($thing);$j++){
$first = explode("--",$thing[$i]);
$second = explode("--",$thing[$j]);
$merge = array_merge($first,$second);
$unique = array_unique($merge);
if (count($unique)==3){
$fix = implode("--",$unique);
$out[$i] = $thing[$i]."--".$thing[$j];
}
}
}
print_r($out);
but the result is:
Array ( [0] => even--heaped--heaped--feast [1] => even--trees--trees--feast [4] => heaped--feast--trees--feast )
which is not what i want. Any suggestions (sorry about the terrible variable names
).
This might help you:
$in = array(
"even--heaped",
"even--trees",
"hardrocks--cocked",
"pebbles--temple",
"heaped--feast",
"trees--feast"
);
$clusters = array();
foreach( $in as $item ) {
$words = explode("--", $item);
// check if there exists a word in an existing cluster...
$check = false;
foreach($clusters as $k => $cluster) {
foreach($words as $word) {
if( in_array($word, $cluster) ) {
// add the words to this cluster
$clusters[$k] = array_unique( array_merge($cluster, $words) );
$check = true;
break;
}
}
}
if( !$check ) {
// create a new cluster
$clusters[] = $words;
}
}
// merge back
$out = array();
foreach( $clusters as $cluster ) {
$out[] = implode("--", $cluster);
}
pr($out);
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