PHP5中文手册·Make a string lowercase -- 追寻梦想＞编程乐园＞PHP 编程

说明

string strtolower ( string $str )

Returns string with all alphabetic characters converted to lowercase.

Note that 'alphabetic' is determined by the current locale. This means that in i.e. the default "C" locale, characters such as umlaut-A (A) will not be converted.

参数

str: The input string.

返回值

Returns the lowercased string.

范例

Example#1 strtolower() example


<?php
$str = "Mary Had A Little Lamb and She LOVED It So";
$str = strtolower($str);
echo $str; // Prints mary had a little lamb and she loved it so
?>

注释

Note: 本函数可安全用于二进制对象。


	PHP5中文手册 strtok strtoupper Strings PHP Manual strtolower (PHP 4, PHP 5) strtolower — Make a string lowercase 说明 string strtolower ( string `$str` ) Returns `string` with all alphabetic characters converted to lowercase. Note that 'alphabetic' is determined by the current locale. This means that in i.e. the default "C" locale, characters such as umlaut-A (A) will not be converted. 参数 `str` The input string. 返回值 Returns the lowercased string. 范例 Example#1 strtolower() example `<?php $str = "Mary Had A Little Lamb and She LOVED It So"; $str = strtolower($str); echo $str; // Prints mary had a little lamb and she loved it so ?>` 注释 Note: 本函数可安全用于二进制对象。参见 strtoupper() ucfirst() ucwords() mb_strtolower() strtok strtoupper Strings PHP Manual

strtolower

说明

参数

返回值

范例

注释

参见