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<joinlevenshtein>
^String FunctionsLast updated: Mon, 26 Oct 2026

lcfirst

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

lcfirst — Make a string's first character lowercase

Description

function lcfirst(string $string): string

Returns a string with the first character of string lowercased if that character is an ASCII character in the range "A" (0x41) to "Z" (0x5a).

Parameters

string

The input string.

Return Values

Returns the resulting string.

Changelog

Version Description
8.2.0 Case conversion no longer depends on the locale set with setlocale(). Only ASCII characters will be converted.

Examples

Example #1 lcfirst() example

<?php
$foo = 'HelloWorld';
echo lcfirst($foo), PHP_EOL;             // helloWorld

$bar = 'HELLO WORLD!';
echo lcfirst($bar), PHP_EOL;             // hELLO WORLD!
echo lcfirst(strtoupper($bar)), PHP_EOL; // hELLO WORLD!
?>

See Also


<joinlevenshtein>
^String FunctionsLast updated: Mon, 26 Oct 2026