ucfirst
(PHP 4, PHP 5)
ucfirst — Make a string's first character uppercase
說明
string ucfirst
( string $str
)
Returns a string with the first character of str capitalized, if that character is alphabetic.
Note that 'alphabetic' is determined by the current locale. For instance, in the default "C" locale characters such as umlaut-a (ä) will not be converted.
參數
- str
-
The input string.
Return值
Returns the resulting string.
範例
Example#1 ucfirst() example
<?php
$foo = 'hello world!';
$foo = ucfirst($foo); // Hello world!
$bar = 'HELLO WORLD!';
$bar = ucfirst($bar); // HELLO WORLD!
$bar = ucfirst(strtolower($bar)); // Hello world!
?>