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. Sample Solution: PHP Code : <?php// Define a function that modifies a string based on its lengthfunctiontest($s){// ...
The strtoupper() function converts a string to uppercase. Note:This function is binary-safe. Related functions: strtolower()- converts a string to lowercase lcfirst()- converts the first character of a string to lowercase ucfirst()- converts the first character of a string to uppercase ...
代码简洁性:保持代码简洁和易读性,避免不必要的复杂性和嵌套,这有助于提高代码的可维护性和性能。 function convertToUpper($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strtoup...
mb_convert_case— 对字符串进行大小写转换说明 ¶ mb_convert_case(string $string, int $mode, ?string $encoding = null): string 对一个 string 进行大小写转换,转换模式由 mode 指定。 参数 ¶ string 要被转换的 string。 mode 转换的模式。它可以是 MB_CASE_UPPER、MB_CASE_LOWER、MB_CASE_TIT...
convert_cyr_string()Converts a string from one Cyrillic character-set to another convert_uudecode()Decodes a uuencoded string convert_uuencode()Encodes a string using the uuencode algorithm count_chars()Returns information about characters used in a string ...
* // Convert a multi-byte string to uppercase * $upper = Str::upper('Τάχιστη'); ** * @param string $value * @return string */ public static function upper($value) { // mb_strtoupper-使字符串大写 return (MB_STRING) ? mb_strtoupper($value, static::encoding()) : strto...
When using UTF-8 and need to convert to uppercase with special characters like the german ä,ö,ü (didn't test for french,polish,russian but think it should work, too) try this:function strtoupper_utf8($string){ $string=utf8_decode($string); $string=strtoupper($string); $string=...
function convertToUpper($input) { if (is_string($input)) { return strtoupper($input); } else { // 处理非字符串输入的情况 return $input; // 或者抛出一个异常 } } $uppercased = convertToUpper($input); 复制代码 通过采取这些措施,您可以确保在使用strtoupper()函数时保持一致性和可靠性。 0...
string mb_convert_encoding ( string str, string to_encoding [, mixed from_encoding] ) 需要先enable mbstring 扩展库,在 php.ini里将; extension=php_mbstring.dll 前面的 ; 去掉 mb_convert_encoding 可以指定多种输入编码,它会根据内容自动识别,但是执行效率比iconv差太多; ...
The entire string will be returned if the value does not exist within the string:use Illuminate\Support\Str; $slice = Str::afterLast('App\Http\Controllers\Controller', '\\'); // 'Controller'Str::apa()The Str::apa method converts the given string to title case following the APA ...