3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Similarity { protected $data = null; protected $distance = null; public function __construct($data, $distance) { $this->data = (string)$data; $this->distance = (int)$distance; } public function checkMatch($search, callable $checker=null, array $args=[], $return=false) { $data = preg_split('/\s+/', strtolower($this->data), -1, PREG_SPLIT_NO_EMPTY); $search = trim(preg_replace('/\s+/', ' ', strtolower($search))); foreach($this->getAssoc($data, substr_count($search, ' ')+1) as $assoc) { foreach($this->getPermutations($assoc) as $ordered) { $ordered = join(' ', $ordered); $result = call_user_func_array($checker, array_merge([$ordered, $search], $args)); if($result<=$this->distance) { return $return?$ordered:true; } } } return $return?null:false; } protected function getPermutations(array $input) { if(count($input)==1) { return [$input]; } $result = []; foreach($input as $key=>$element) { foreach($this->getPermutations(array_diff_key($input, [$key=>0])) as $subarray) { $result[] = array_merge([$element], $subarray); } } return $result; } protected function nextAssoc($assoc) { if(false !== ($pos = strrpos($assoc, '01'))) { $assoc[$pos] = '1'; $assoc[$pos+1] = '0'; return substr($assoc, 0, $pos+2). str_repeat('0', substr_count(substr($assoc, $pos+2), '0')). str_repeat('1', substr_count(substr($assoc, $pos+2), '1')); } return false; } protected function getAssoc(array $data, $count=2) { if(count($data)<$count) { return null; } $assoc = str_repeat('0', count($data)-$count).str_repeat('1', $count); $result = []; do { $result[]=array_intersect_key($data, array_filter(str_split($assoc))); } while($assoc=$this->nextAssoc($assoc)); return $result; } } $data = 'Niels Faurskov'; $search = [ 'Niels Andersen', 'Niels Faurskov', 'Niels Faurskov Andersen', 'Nils Faurskov Andersen', 'Nils Andersen', 'niels faurskov', 'niels Faurskov', 'niffddels Faurskovffre' ]; $checker = new Similarity($data, 2); echo(sprintf('Testing "%s"'.PHP_EOL.PHP_EOL, $data)); foreach($search as $name) { echo(sprintf( 'Name "%s" has %s'.PHP_EOL, $name, ($result=$checker->checkMatch($name, 'levenshtein', [], 1)) ?sprintf('matched with "%s"', $result) :'mismatched' ) ); }
Output for git.master, git.master_jit, rfc.property-hooks
Testing "Niels Faurskov" Name "Niels Andersen" has mismatched Name "Niels Faurskov" has matched with "niels faurskov" Warning: foreach() argument must be of type array|object, null given in /in/03KGY on line 17 Name "Niels Faurskov Andersen" has mismatched Warning: foreach() argument must be of type array|object, null given in /in/03KGY on line 17 Name "Nils Faurskov Andersen" has mismatched Name "Nils Andersen" has mismatched Name "niels faurskov" has matched with "niels faurskov" Name "niels Faurskov" has matched with "niels faurskov" Name "niffddels Faurskovffre" has mismatched

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page


preferences:
46.46 ms | 402 KiB | 8 Q