Doc #79050 [Ver->Csd]: Levenshteins third argument not implemented and typed as string

Edit report at https://bugs.php.net/bug.php?id=79050&edit=1 ID: 79050 Updated by: cmb@php.net Reported by: php at conscribo dot nl Summary: Levenshteins third argument not implemented and typed as string -Status: Verified +Status: Closed Type: Documentation Problem Package: Strings related Operating System: Debian PHP Version: 7.3.13 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: Support for the third signature is completely removed as of PHP 8.0.0, so it doesn't make sense to document that signature, just to state that it is not implemented. Previous Comments: ------------------------------------------------------------------------ [2019-12-31 14:03:01] cmb@php.net There is also the related feature request #34835. ------------------------------------------------------------------------ [2019-12-31 13:44:48] cmb@php.net levenshtein() has actually three alternative signatures; the one you're using in the test script is levenshtein(string $str1, string $str2, string $callback_name): int but this signature is still not implemented (that's why you're getting the warning). Note that $callback_name is indeed a string, not a callable. ------------------------------------------------------------------------ [2019-12-31 12:54:34] php at conscribo dot nl Description: ------------ --- From manual page: https://php.net/function.levenshtein --- The documentation states that arguments 3 to 5 support weights for various actions. These are not implemented (not documented). The documentation states the weights should be integers. Running with php strict_types reveals it only accepts strings. Test script: --------------- <?php declare(strict_types=1); $str1 = 'abc'; $str2 = 'abcd'; echo levenshtein($str1, $str2, 0); //output: //PHP Fatal error: Uncaught TypeError: levenshtein() expects parameter 3 to be //string, integer given ------ <?php declare(strict_types=1); $str1 = 'abc'; $str2 = 'abcd'; echo levenshtein($str1, $str2, '0'); //output: // PHP Warning: levenshtein(): The general Levenshtein support is not there yet ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79050&edit=1