strcasecmp – PHP String Functions

Syntax :

Description :

strcasecmp() function will compare two strings.

Parameter :

• string1 – This is a Required parameter. It is the first string which will be compared.
• string2 – This is a Required parameter. It is the second string which will be compared.

Output :

Return values in this function are:

• 0 – if the two strings are equal.
• < 0 – if string1 is less than string2.
• > 0 – if string1 is greater than string2.

Related articles : strcmp(), substr() , preg_match(), substr_compare(), stristr().

strcasecmp() – PHP Functions Example 1 : It returns 0, if the two strings are equal.

<?php
echo strcasecmp("Hi from tutorialmines.","hI FROM TUTORIALMINES."); // case-insensitive comparison
?>

Output of above code in the browser is as below:

strcasecmp() – PHP Functions Example 2 : It returns 0, if the two strings are equal. Case of character does not matter for it.

<?php
echo strcasecmp("Hi from tutorialmines.","hI FROM TUTORIALMINES.");
echo "<br/>";
echo strcasecmp("Hi from tutorialmines.","hI from Tutorialmines.");
?>

Output of above code in the browser is as below:

strcasecmp() – PHP Functions Example 3 :

<?php
echo "String1 is equal to string2<br/>";
echo strcasecmp("Hi from tutorialmines.","hI FROM TUTORIALMINES.");
echo "<br/>String1 is greater than string2<br/>";
echo strcasecmp("Hi from tutorialmines.","hI Tutorialmines.");
echo "<br/>String1 is less than string2<br/>";
echo strcasecmp("Hi from tutorialmines.","hI FROM TUTORIALMINES from PHP section.");
?>

Output of above code in the browser is as below: