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

说明

string strtoupper ( string $string )

Returns string with all alphabetic characters converted to uppercase.

Note that 'alphabetic' is determined by the current locale. For instance, in the default "C" locale characters such as umlaut-a (a) will not be converted.

参数

string: The input string.

返回值

Returns the uppercased string.

范例

Example#1 strtoupper() example


<?php
$str = "Mary Had A Little Lamb and She LOVED It So";
$str = strtoupper($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 strtolower strtr Strings PHP Manual strtoupper (PHP 4, PHP 5) strtoupper — Make a string uppercase 说明 string strtoupper ( string `$string` ) Returns `string` with all alphabetic characters converted to uppercase. Note that 'alphabetic' is determined by the current locale. For instance, in the default "C" locale characters such as umlaut-a (a) will not be converted. 参数 `string` The input string. 返回值 Returns the uppercased string. 范例 Example#1 strtoupper() example `<?php $str = "Mary Had A Little Lamb and She LOVED It So"; $str = strtoupper($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 strtolower() ucfirst() ucwords() mb_strtoupper() strtolower strtr Strings PHP Manual

strtoupper

说明

参数

返回值

范例

注释

参见