3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // input misspelled word $input = 'carriotot'; // array of words to check against $words = array('apple','pineapple','banana','orange', 'radish','carrot','pea','bean','potato'); // no shortest distance found, yet $shortest = -1; // loop through words to find the closest foreach ($words as $word) { // calculate the distance between the input word, // and the current word $lev = levenshtein($input, $word); // check for an exact match if ($lev == 0) { // closest word is this one (exact match) $closest = $word; $shortest = 0; // break out of the loop; we've found an exact match break; } // if this distance is less than the next found shortest // distance, OR if a next shortest word has not yet been found if ($lev <= $shortest || $shortest < 0) { // set the closest match, and shortest distance $closest = $word; $shortest = $lev; } } echo "Input word: $input\n"; if ($shortest == 0) { echo $lev."\n"; echo "Exact match found: $closest\n"; } else { echo $lev."\n"; echo "Did you mean: $closest?\n"; }
Output for 4.3.0 - 7.1.0
Input word: carriotot 7 Did you mean: carrot?