- print_r: documentation ( source)
- array_diff: documentation ( source)
- str_split: documentation ( source)
<?php
function colorSequences($i1,$i2)
{
$m = strlen($i1);
$n = strlen($i2);
$at = str_split($i2);
$count = 0;
/*for($i=0;$i<$m;$i++){
if(count($i2) > 0){
if( in_array($i1[$i],$at) ){
$key = array_search($i1[$i],$at);
unset($at[$key]);
}else{
$count++;
}
}else{
$count++;
}
}
return $count+(count($at))-$m;*/
return array_diff($i1, $i2);
}
print_r( colorSequences("xa","asdf"));
?>