THE WORLD'S LARGEST WEB DEVELOPER SITE

PHP Tutorial

PHP HOME PHP Intro PHP Install PHP Syntax PHP Comments PHP Variables PHP Echo / Print PHP Data Types PHP Strings PHP Numbers PHP Constants PHP Operators PHP If...Else...Elseif PHP Switch PHP While Loops PHP For Loops PHP Functions PHP Arrays PHP Sorting Arrays PHP Superglobals

PHP Forms

PHP Form Handling PHP Form Validation PHP Form Required PHP Form URL/E-mail PHP Form Complete

PHP Advanced

PHP Arrays Multi PHP Date and Time PHP Include PHP File Handling PHP File Open/Read PHP File Create/Write PHP File Upload PHP Cookies PHP Sessions PHP Filters PHP Filters Advanced

MySQL Database

MySQL Database MySQL Connect MySQL Create DB MySQL Create Table MySQL Insert Data MySQL Get Last ID MySQL Insert Multiple MySQL Prepared MySQL Select Data MySQL Delete Data MySQL Update Data MySQL Limit Data

PHP XML

PHP XML Parsers PHP SimpleXML Parser PHP SimpleXML - Get PHP XML Expat PHP XML DOM

PHP - AJAX

AJAX Intro AJAX PHP AJAX Database AJAX XML AJAX Live Search AJAX Poll

PHP Examples

PHP Examples PHP Quiz PHP Exercises PHP Certificate

PHP Reference

PHP Overview PHP Array PHP Calendar PHP Date PHP Directory PHP Error PHP Filesystem PHP Filter PHP FTP PHP Libxml PHP Mail PHP Math PHP Misc PHP MySQLi PHP Network PHP SimpleXML PHP Stream PHP String PHP XML Parser PHP Zip PHP Timezones

PHP similar_text() Function

❮ PHP String Reference

Example

Calculate the similarity between two strings and return the matching characters:

<?php
echo similar_text("Hello World","Hello Peter");
?>
Try it Yourself »

Definition and Usage

The similar_text() function calculates the similarity between two strings.

It can also calculate the similarity of the two strings in percent.

Note: The levenshtein() function is faster than the similar_text() function. However, the similar_text() function will give you a more accurate result with less modifications needed.


Syntax

similar_text(string1,string2,percent)
Parameter Description
string1 Required. Specifies the first string to be compared
string2 Required. Specifies the second string to be compared
percent Optional. Specifies a variable name for storing the similarity in percent

Technical Details

Return Value: Returns the number of matching characters of two strings
PHP Version: 4+

More Examples

Example

Calculate the similarity between two strings in percent:

<?php
similar_text("Hello World","Hello Peter",$percent);
echo $percent;
?>
Try it Yourself »

❮ PHP String Reference