php levenshtein() function
Translation results：
[Person’s name] Leven;[Place name] [UK] Leven
php levenshtein() functionsyntax
Function:Calculate the edit distance between two strings
Syntax: int levenshtein (string $str1, string $str2, int $cost_ins, int $cost_rep , int $cost_del )
Parameters:
| Parameters | Description |
| str1 | Find one of the strings in the edit distance. |
| str2 | Find another string in the edit distance. |
| cost_ins | Define the number of insertions. |
| cost_rep | Define the number of replacements. |
| cost_del | Define the number of deletions |
Note: Edit distance refers to Between two strings, the minimum number of characters required to convert string str1 into str2 through operations such as substitution, insertion, and deletion.
php levenshtein() functionexample
<?php $data = "hello"; $res = "world"; echo levenshtein($data,$res); ?>
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Output:
4
<?php $str1 = "Learning PHP"; $str2 = "is a good choise"; echo levenshtein($str1,$str2); ?>
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Output:
14