PHP soundex() Function Usage and Example

　 　 PHP String Manual of String Functions

　 　 The soundex() function is used to calculate the soundex key of a string.

Syntax

string soundex ( string $str )

Definition and Usage

Used to calculate the soundex key of a string.

The soundex key is 4 A alphanumeric string of characters, representing the English pronunciation of a word.

The soundex() function can be used in spelling check programs.

Note:The soundex() function creates the same key for words with similar pronunciation.

Tip: metaphone() More accurate than the soundex() function because metaphone() understands the basic pronunciation rules of English.

Return Value

It returns the soundex key in string form

Parameter

Online Example

Try the following example, calculate the string oldtoolbag.com's Soundex key:

<?php
　　　//Calculate the string oldtoolbag.com's Soundex key.
　　　$input = "oldtoolbag.com";
　　　echo soundex($input);
?>

Output Result

N250

PHP String Manual of String Functions