在PHP中,可以使用内置的strtolower()和strtoupper()函数来实现字符串的大小写转换。 转换为小写: <?php $str = "ConVert Me tO LoWErCasE"; $lowercase_str = strtolower($str); echo $lowercase_str; // 输出:convert me to lowercase ?> 复制代码 转换为大写: <?php $str = "ConVert Me tO UPPER...
To convert a given string to uppercase in PHP, we usestrtoupper()method. strtoupper() Function This method takes a string in any case as an argument and returns uppercase string. Syntax strtoupper(string) PHP code to convert string into uppercase ...
So I decided to do an mb_convert_case on the input string (it also deals with words is uppercase wich may also be problematic when doing case-sensitive search), and do the rest of checking after that. As with mb_convert_case, words are capitalized, I also added lowercase convertion fo...
$lowerCase=mb_convert_case( $upperCase,MB_CASE_LOWER,"UTF-8"); // Print lower case string echo" ".$lowerCase; ?> 输出 WELCOME TO GEEKSFORGEEKS welcome to geeksforgeeks 示例2:以下代码演示了 PHP mb_convert_case() 函数的另一个示例。 PHP实现 <?php // Declare a string $str="welcome ...
[$i] . $result; break; case '1': $result = $upperNumbers[1] . $digit[$i] . $result; break; // 依次类推,根据需要对每个数字进行匹配 } } return $result;}$number = 12345;echo convertToUpper($number); // 输出:壹万贰仟叁佰肆拾伍```以上就是使用if-else语句和switch-case语句两种...
WELCOME TO GEEKSFORGEEKS welcome to geeksforgeeks 示例2:下面的代码演示了 PHP 的另一个例子mb_convert_case()函数。 PHP <?php// Declare a string$str ="welcome to geeksforgeeks";// Convert given string into case// title using "UTF-8" encoding$upperCase =mb_convert_case( ...
$uppercaseUsername = ucwords($username); // 进行验证... 通过使用PHP小写转大写的方法,我们可以方便地处理字符串和数组中的小写字符,提高代码的可读性和可维护性。 总结归纳 对PHP小写转大写进行了详细的阐述。通过字符串函数、数组函数、正则表达式、内置函数、自定义函数以及实例应用的介绍,读者可以全面了解PHP小...
The strtoupper() function converts a string to uppercase. Note:This function is binary-safe. Related functions: strtolower()- converts a string to lowercase lcfirst()- converts the first character of a string to lowercase ucfirst()- converts the first character of a string to uppercase ...
PHP Exercises, Practice and Solution: Write a PHP program to convert the last 3 characters of a given string in upper case. If the length of the string has less than 3 then uppercase all the characters.
function convertToUpper($string) { return strtoupper($string); } $strings = ['hello', 'world']; $uppercasedStrings = array_map('convertToUpper', $strings); 复制代码 通过这些方法,你可以优化strtoupper的使用,提高代码的性能和效率。 0 赞 0 踩最新...