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2024-02-22
(PHP 4, PHP 5)
soundex — Calculate the soundex key of a string
說明
string soundex ( string$str
)
Calculates the soundex key of str.
Soundex keys have the property that words pronounced similarly produce the same soundex key, and can thus be used to simplify searches in databases where you know the pronunciation but not the spelling. This soundex function returns a string 4 characters long, starting with a letter.
This particular soundex function is one described by Donald Knuth in "The Art Of Computer Programming, vol. 3: Sorting And Searching", Addison-Wesley (1973), pp. 391-392.
參數
str
The input string.
返回值
Returns the soundex key as a string.
范例
Example #1 Soundex Examples
<?php
soundex("Euler") == soundex("Ellery"); // E460
soundex("Gauss") == soundex("Ghosh"); // G200
soundex("Hilbert") == soundex("Heilbronn"); // H416
soundex("Knuth") == soundex("Kant"); // K530
soundex("Lloyd") == soundex("Ladd"); // L300
soundex("Lukasiewicz") == soundex("Lissajous"); // L222
?>
參見
levenshtein() - 計算兩個字符串之間的編輯距離 metaphone() - Calculate the metaphone key of a string similar_text() - 計算兩個字符串的相似度
