PHP metaphone() function

4 Sept 2024 | 1 min read

PHP metaphone() function is predefined function. It is used to calculate the metaphone key of a string. It is useful to text search and text matching application.

It is phonetic algorithm developed by Lawrence Philips. The algorithm produces variable length keys as output.

Syntax:

ParameterDescriptionRequired/Optional
StringSpecify input string.Required
LengthSpecify the max length of the megaphones key.Optional

Example 1

Output:

Before using metaphone() function:Hello PHP After using metaphone() function: HLFP 

Example 2

Output:

NS NS 

Example 3

Output:

string(7) "PRKRMNK" string(6) "PRKRMR" 

Example 4

Output:

NS NS 

Note: Given above example by using the length of parameter.


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