How to use similar text in PHP

In this article I will explain how the similar_text () function can be used in PHP.
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similar_text() function in PHP

  • The similar_text() function is used to return the number of matching characters between two strings.
  • The similar_text() function can also calculate the similarity of the two strings in percent.
  • The similar_text() function  is slower than the levenshtein() function.
  • The similar_text() function will give you a more accurate result with less modifications needed.




  • string1 string1 is required parameter. it is specify the first string to be compared.
  • string2 string2 is required parameter. it is specify the second string to be compared.
  • percent percent is optional parameter. it is specify a variable name for storing the similarity in percent.

The following example show to how the similar_text() function can be used in PHP.



<h3 style="color: blueviolet;">similar_text() function example in PHP</h3>


    echo "First compare strings is : 'Welcome to C-sharpcorner user'".'<br>';

    echo "Second compare strings is : 'Have a nice day C-sharpcorner user'".'<br/>';

    echo 'No of similar characters : '.similar_text('Welcome to C-sharpcorner user', 'Have a nice day C-  

    sharpcorner user').'<br>';

    similar_text('Welcome to C-sharpcorner user', 'Have a nice day C-sharpcorner user', $similar_percent);

    echo 'Similarity between two strings in percentage : '. $similar_percent;






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