Easiest work-around I've found for <5.3:
<?php
$string = "CamelCase"
$string{0} = strtolower($string{0})
echo $string; // outputs camelCase
?>
lcfirst
(PHP 5 >= 5.3.0, PHP 7)
lcfirst — Make a string's first character lowercase
설명
string lcfirst
( string
$str
)
Returns a string with the first character of
str lowercased 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.
인수
-
str -
The input string.
반환값
Returns the resulting string.
예제
Example #1 lcfirst() example
<?php
$foo = 'HelloWorld';
$foo = lcfirst($foo); // helloWorld
$bar = 'HELLO WORLD!';
$bar = lcfirst($bar); // hELLO WORLD!
$bar = lcfirst(strtoupper($bar)); // hELLO WORLD!
?>
참고
- ucfirst() - Make a string's first character uppercase
- strtolower() - 문자열을 소문자로 만듭니다
- strtoupper() - 문자열을 대문자로 만듭니다
- ucwords() - Uppercase the first character of each word in a string
add a note
User Contributed Notes 4 notes
phpnet at katylavallee dot com ¶
15 years ago
alex aulbach ¶
15 years ago
In some cases maybe more useful?
$lower = strtolower( substr($upper,0,1) ) . substr($upper,1);
harmor ¶
15 years ago
A slight modification from Northie's post here ( http://us2.php.net/manual/en/function.ucfirst.php#68443), where lcfirst may not exist in your PHP build:
<?php
if(false === function_exists('lcfirst'))
{
/**
* Make a string's first character lowercase
*
* @param string $str
* @return string the resulting string.
*/
function lcfirst( $str ) {
$str[0] = strtolower($str[0]);
return (string)$str;
}
}
/* Tests */
echo var_dump(lcFirst(NULL)).'<br />'; /* string(0) "" */
echo var_dump(lcFirst('')) .'<br />'; /* string(0) "" */
echo var_dump(lcFirst('S')) .'<br />'; /* string(1) "S" */
echo var_dump(lcFirst('É')) .'<br />'; /* string(0) "�" */
echo var_dump(lcFirst('Hello World!!!')); /* string(14) "hello World!!!" */
ahlers_wim at hotmail dot com ¶
15 years ago
As of PHP release 6 direct reference modification is not permitted any more.
Reference modification is the process of manipulating characters within a string by means of the instruction such as:
$str[0] in the code line: $str[0] = strtolower($str[0]);
For this reason I have recoded the lcfirst function (on function_exists('lcfirst') === false) as follows:
<?php
if ( false === function_exists('lcfirst') ):
function lcfirst( $str )
{ return (string)(strtolower(substr($str,0,1)).substr($str,1));}
endif;
?>
Remarks:
Also notice that I have used the more modern scope delimeters (if:-endif;) and I have also removed the unnecessary intermediate result. That is, the manipulation is returned directly.
