← All built-ins / levenshtein()
levenshtein()
levenshtein(string $haystack, string $needle): int
Parameters
| Name | Type | Description |
|---|---|---|
| $a | string | first string |
| $b | string | second string |
Return value
Edit distance: minimum insertions + deletions + substitutions to turn $a into $b.
Example
echo levenshtein("holy", "holyphp"), "
";
echo levenshtein("cat", "cut"), "
";3 1