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PHP metaphone() Function

PHP String Reference : Calculate the metaphone key of "World"

Definition and Usage

The metaphone() function calculates the metaphone key of a string.

A metaphone key represents how a string sounds if said by an English speaking person.

The metaphone() function can be used for spelling applications.

Note: The metaphone() function creates the same key for similar sounding words.
Note: The generated metaphone keys vary in length.
Tip: metaphone() is more accurate than the soundex() function, because metaphone() knows the basic rules of English pronunciation.

Syntax

metaphone(string,length)

Parameter Values

Parameter Description
string Required. Specifies the string to check
length Optional. Specifies the maximum length of the metaphone key

Technical Details

Return Value: Returns the metaphone key of the string on success, or FALSE on failure.
PHP Version: 4+

More Examples

Example

Using the metaphone() function on two similar sounding words:

<?php
$str = "Assistance";
$str2 = "Assistants";

echo metaphone($str);
echo "<br>";
echo metaphone($str2);
?>

Example

Using the length parameter:

<?php
$str = "Assistance";
$str2 = "Assistants";

echo metaphone($str,5);
echo "<br>";
echo metaphone($str2,5);
?>

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