PHP metaphone() Function

PHP metaphone() Function

The metaphone() function in PHP calculates the metaphone key (representing how a string sounds or pronounced) of a string. This function is used to text search and text matching or spelling applications.

Syntax


metaphone ( string $str [, int $phonemes ] )

metaphone ( string $str [, int $phonemes ] )

Parameter

str(required)- This parameter specifies the input string.

phonemes(optional)- This parameter specifies the maximum length of the metaphone key and restricts the returned metaphone key. The default value is 0 (means no restriction).

Return

This function returns the metaphone key as a string or FALSE on failure.

Example 1


<?php
 // initializing the string
 $str= "Hello World";
 echo "Actual String: ".$str;
 // calculating the metaphone key of a string 
 echo "\nMetaphone string: ".metaphone($str);
 ?>

<?php

// initializing the string

$str= "Hello World";

echo "Actual String: ".$str;

// calculating the metaphone key of a string

echo "\nMetaphone string: ".metaphone($str);

Output


Actual String: Hello World
Metaphone string: HLWRLT

Actual String: Hello World

Metaphone string: HLWRLT

Example 2


<?php
 //initializing the string1 
 $str1 = "Principle";
 echo "String 1: ".$str1;
 // calculating how a string sounds if said by an English speaking person. 
 echo "\nMetaphone string: ".metaphone($str1);
 // initializing the string2
 $str2 = "Principal";
 echo "\n\nString 2: ".$str2; 
 echo "\n";
 // calculating how a string sounds if said by an English speaking person.
 echo "\nMetaphone string: ".metaphone($str2);
 ?>

<?php

//initializing the string1

$str1 = "Principle";

echo "String 1: ".$str1;

// calculating how a string sounds if said by an English speaking person.

echo "\nMetaphone string: ".metaphone($str1);

// initializing the string2

$str2 = "Principal";

echo "\n\nString 2: ".$str2;

echo "\n";

// calculating how a string sounds if said by an English speaking person.

echo "\nMetaphone string: ".metaphone($str2);

Output


String 1: Principle
Metaphone string: PRNSPL
String 2: Principal
Metaphone string: PRNSPL

String 1: Principle

Metaphone string: PRNSPL

String 2: Principal

Metaphone string: PRNSPL

Example 3


<?php
 //initializing the string1 
 $str1 = "Principle";
 echo "String 1: ".$str1;
 // calculating how a string sounds if said by an English speaking person.
 echo "\nMetaphone string: ".metaphone($str1,2); // Specifies the length(2) of the metaphone key 
 // initializing the string2
 $str2 = "Principal";
 echo "\n\nString 2: ".$str2;
 echo "\n";
 // calculating how a string sounds if said by an English speaking person. 
 echo "Metaphone string: ".metaphone($str2,4); // Specifies the length(4) of the metaphone key
 ?>

<?php

//initializing the string1

$str1 = "Principle";

echo "String 1: ".$str1;

// calculating how a string sounds if said by an English speaking person.

echo "\nMetaphone string: ".metaphone($str1,2); // Specifies the length(2) of the metaphone key

// initializing the string2

$str2 = "Principal";

echo "\n\nString 2: ".$str2;

echo "\n";

// calculating how a string sounds if said by an English speaking person.

echo "Metaphone string: ".metaphone($str2,4); // Specifies the length(4) of the metaphone key

Output


String 1: Principle
Metaphone string: PR
String 2: Principal
Metaphone string: PRNS

String 1: Principle

Metaphone string: PR

String 2: Principal

Metaphone string: PRNS

Example 4


<?php  
$str = "Year";  
$str2 = "ear";  
echo metaphone($str,2);  
echo "\n";   
echo metaphone($str2,2);  
?>

<?php

$str = "Year";

$str2 = "ear";

echo metaphone($str,2);

echo "\n";

echo metaphone($str2,2);

Output


YR ER

YR ER

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