PHP lcfirst() Function Last Updated : 21 Jun, 2023 Comments Improve Suggest changes Like Article Like Report The lcfirst() function is a built-in function in PHP which takes a string as an argument and returns the string with the first character in Lower Case and all other characters remain unchanged. Syntax: lcfirst($string) Parameter: The function accepts only one parameter $string which is mandatory. This parameter represents the input string whose first character will be changed to lowercase. Return Value: The function returns the same string only by changing the first character to lower 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 lcfirst() function in PHP: Program 1: php <?php // PHP program to demonstrates the // use of lcfirst() function $str = "Geeks for geeks"; // converts the first character to // lower case and prints the string echo(lcfirst($str)); ?> Output: geeks for geeks Program 2: The program below demonstrates the use of lcfirst() function when the starting character is already in lower-case. php <?php // PHP program that demonstrates the // use of lcfirst() function when // the first case is already in lowercase $str = "chetna agarwal"; // already the first character is in lower case // so prints the same string only echo(lcfirst($str)); ?> Output: chetna agarwal Reference: http://php.net/manual/en/function.lcfirst.php Comment More infoAdvertise with us C ChetnaAgarwal Follow Improve Article Tags : Misc Web Technologies PHP PHP-string Practice Tags : Misc Similar Reads PHP addcslashes() Function The addcslashes() function is a built-in function in PHP. 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