PHP soundex() Function
Example
Calculate the soundex key of "Hello":
<?php
$str = "Hello";
echo soundex($str);
?>
Run example »
$str = "Hello";
echo soundex($str);
?>
Definition and Usage
The soundex() function calculates the soundex key of a string.
A soundex key is a four character long alphanumeric string that represent English pronunciation of a word.
The soundex() function can be used for spelling applications.
Note: The soundex() function creates the same key for similar sounding words.
Tip: metaphone() is more accurate than soundex(), because metaphone() knows the basic rules of English pronunciation.
Syntax
soundex(string)
| Parameter | Description |
|---|---|
| string | Required. Specifies the string to check |
Technical Details
| Return Value: | Returns the soundex key of the string on success, or FALSE on failure. |
|---|---|
| PHP Version: | 4+ |
More Examples
Example 1
Using the soundex() function on two similar sounding words:
<?php
$str = "Assistance";
$str2 = "Assistants";
echo soundex($str);
echo "<br>";
echo soundex($str2);
?>
Run example »
$str = "Assistance";
$str2 = "Assistants";
echo soundex($str);
echo "<br>";
echo soundex($str2);
?>
PHP String Reference
