PHP合并两条路径-相对绝对

Question

有谁知道有没有一种方法可以很容易地合并到路径？

/www/htdocs/v450687/server/jobs/bodymind/uploads
uploads/videoscontent/1/

转到/www/htdocs/v450687/server/jobs/bodymind/uploads/videoscontent/1/

/www/htdocs/v450687/server/jobs/bodymind/uploads/videoscontent
uploads/videoscontent/1/snips

转到/www/htdocs/v450687/server/jobs/bodymind/uploads/videoscontent/1/snips

/www/htdocs/v450687/server/jobs/bodymind/uploads/1/1
1/1/snips

转到/www/htdocs/v450687/server/jobs/bodymind/uploads/videoscontent/1/1/snips

Answer 1

解决方案：built in function to combine overlapping string sequences in php?

echo replaceOverlap("abxcdex", "xcdexfg"); //Result: abxcdexfg

function findOverlap($str1, $str2){
  $return = array();
  $sl1 = strlen($str1);
  $sl2 = strlen($str2);
  $max = $sl1>$sl2?$sl2:$sl1;
  $i=1;
  while($i<=$max){
    $s1 = substr($str1, -$i);
    $s2 = substr($str2, 0, $i);
    if($s1 == $s2){
      $return[] = $s1;
    }
    $i++;
  }
  if(!empty($return)){
    return $return;
  }
  return false;
}

function replaceOverlap($str1, $str2, $length = "long"){
  if($overlap = findOverlap($str1, $str2)){
    switch($length){
      case "short":
        $overlap = $overlap[0];
        break;
      case "long":
      default:
        $overlap = $overlap[count($overlap)-1];
        break;
    }     
    $str1 = substr($str1, 0, -strlen($overlap));
    $str2 = substr($str2, strlen($overlap));
    return $str1.$overlap.$str2;
  }
  return false;
}

Answer 2

据我所知，没有内置的方法可以做到这一点。以下是我的方法：

1. 将两条路径分解为一个数组，并将它们合并为重复项。

下面是一个示例：

$path_1 = '/www/htdocs/v450687/server/jobs/bodymind/uploads';
$path_2 = 'uploads/videoscontent/1/';
echo implode('/', array_unique(array_merge(explode('/', $path_1), explode('/', $path_2)), SORT_REGULAR));

输出：/www/htdocs/v450687/server/jobs/bodymind/uploads/videoscontent/1

Answer 3

您必须将路径分解为数组，合并它们，并删除重复项。你可以用不同的方法来完成，下面是一些例子：

$path1 = '/www/htdocs/v450687/server/jobs/bodymind/uploads';
$path2 = 'uploads/videoscontent/1/';

print_r(pathToArray($path1, $path2));

function pathToArray($path1, $path2){
    foreach(explode('/', $path1) as $part){
        $output1[] = $part;
    }

    foreach(explode('/', $path2) as $part){
        $output2[] = $part;
    }

    $output = array_merge($output1, $output2);

    $output = array_unique($output);
    $output = implode("/",$output);
    return $output;
}

或

$path1 = '/www/htdocs/v450687/server/jobs/bodymind/uploads';
$path2 = 'uploads/videoscontent/1/';

echo implode('/', array_unique(array_merge(explode('/', $path_1), explode('/', $path_2)), SORT_REGULAR));

更新：我看到你已经更新了你的问题，所以我提出了我的答案。在这种情况下，要解决这个问题，您只需对每个数组使用array_unique()。

$path1 = '/www/htdocs/v450687/server/jobs/bodymind/uploads/1/1';
$path2 = '1/1/snips';

print_r(pathToArray($path1, $path2));

function pathToArray($path1, $path2){
    foreach(explode('/', $path1) as $part){
        $output1[] = $part;
    }

    foreach(explode('/', $path2) as $part){
        $output2[] = $part;
    }

    $output1 = array_unique($output1);
    $output2 = array_unique($output2);
    $output = array_merge($output1, $output2);

    //$output = array_unique($output);
    $output = implode("/",$output);
    return $output;
}