Вы искали: strtolower (Китайский (упрощенный) - Английский)

strtolower
(php 3, php 4)

strtolower()
substr()

瞰赽 1. strtolower() example
example 1. strtolower() example

see also strtoupper(), strtolower() and ucfirst().
see also strtoupper(), strtolower() and ucfirst().

see also strtolower(), strtoupper(), and ucwords().
see also strtolower(), strtoupper(), and ucwords().

see also strtolower(), mb_strtoupper(), mb_convert_case().
see also strtolower(), mb_strtoupper(), mb_convert_case().

see also mb_strtolower(), mb_strtoupper(), strtolower(), strtoupper().
see also mb_strtolower(), mb_strtoupper(), strtolower(), strtoupper().

$foo = 'hello world!'; $foo = ucfirst($foo); // hello world! $bar = 'hello world!'; $bar = ucfirst($bar); // hello world! $bar = ucfirst(strtolower($bar)); // hello world!
$foo = 'hello world !'; $foo = ucfirst($foo); / / hello world! $bar = 'hello world !'; $bar = ucfirst($bar); / / hello world! $bar = ucfirst(strtolower($bar)); / / hello world!