PHP lcfirst() Function: Description, Parameters, Return Value, and Examples

lcfirst() makes the first character of a string lowercase in PHP.

It returns the input string with its first character converted to lowercase if it is a letter, respecting the current locale.

Parameter: $str – the input string.

Return value: the transformed string.

Example usage:

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

$bar = 'HELLO WORLD!';
$bar = lcfirst($bar);
echo $bar; // hELLO WORLD!

$bar = lcfirst(strtoupper($bar));
echo $bar; // hELLO WORLD!
?>

Output:

// helloWorld
// hELLO WORLD!