PHP ucfirst() Function

The ucfirst() function is a built-in function in PHP which takes a string as an argument and returns the string with the first character in Upper Case and all other characters remain unchanged. Syntax:

ucfirst($string)

Parameter: The function accepts only one parameter $string which is mandatory. This parameter represents the string whose first character will be changed to uppercase. Return Value: The function returns the same string only by changing the first character to upper case of the passed argument $string. Examples:

Input : "geeks for geeks"
Output : Geeks for geeks

Input : "Chetna Agarwal"
Output : Chetna Agarwal

Below programs illustrate the ucfirst() function in PHP: Program 1: The program below demonstrates the use of ucfirst() function. php

<?php
    // PHP program that demonstrates the 
    // use of ucfirst() function 
    
    $str = "geeks for geeks";
    
    // converts the first case to upper case 
    // and prints the string
    echo(ucfirst($str)); 
?>

Output:

Geeks for geeks

Program 2: The program below demonstrates the use of ucfirst() function when the starting character is in upper-case. php

<?php
    // PHP program that demonstrates the 
    // use of ucfirst() function when 
    // the first case is already in uppercase
    
    $str = "Chetna Agarwal";
    
    // already the first character is in upper case 
    // so prints the same string only
    echo(ucfirst($str)); 
?>

Output:

Chetna Agarwal

Reference: https://www.php.net/manual/en/function.ucfirst.php