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 ...
function CT_to_upper($string) { $isChineseStart = false; $new_string = ""; $i = 0; while($i < strlen($string)) { if (ord(substr($string,$i,1)) <128) { if( $isChineseStart == false ) $new_string .= strtoupper(mb_substr($string,$i,1)); else $new_string .= sub...
if ( strtolower( $myString1 ) == strtolower( $myString2 ) ) echo "Strings match"; If you need to convert a string containing Unicode characters to lowercase, usemb_strtolower()instead. Converting a whole string to uppercase withstrtoupper() strtoupper()does the opposite ofstrtolower(), con...
The strtoupper() function is used to convert all alphabetic characters of a string to uppercase.Version:(PHP 4 and above) Syntax:strtoupper(string1)Parameter:NameDescriptionRequired /OptionalType string1 The input string. Required StringReturn value:The uppercased string. ...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 print_r(array_change_key_case($t_array,CASE_UPPER)); array_change_key_case的第二个参数为CASE_UPPER表示:将数组的键转换为大写字母 还可以使用 CASE_LOWER。 CASE_LOWER:为默认值。将数组的键转换为小写字母 ...
ucwords()Converts the first character of each word in a string to uppercase vfprintf()Writes a formatted string to a specified output stream vprintf()Outputs a formatted string vsprintf()Writes a formatted string to a variable wordwrap()Wraps a string to a given number of characters ...
ucfirst — Make a string’s first character uppercase ucwords — Uppercase the first character of each word in a string vfprintf — Write a formatted string to a stream vprintf — Output a formatted string vsprintf — Return a formatted string ...
Change the case of a string withstrtolower()andstrtoupper(). $lowercase=strtolower('Hello, World!');// Results in 'hello, world!'$uppercase=strtoupper('Hello, World!');// Results in 'HELLO, WORLD!' PHP Escape Characters Escape characters in PHP strings help you include special characters ...
The lcfirst() function converts the first character of a string to lowercase.Related functions:ucfirst() - converts the first character of a string to uppercase ucwords() - converts the first character of each word in a string to uppercase strtoupper() - converts a string to uppercase ...
string GBunspace(string) --- 每个中文字之间的空格清除 string clear_space(string) --- 用来清除多余的空格 --- PHP中文处理工具函数之转换 --- string GBcase(string,offset) --- 将字符串内的中英文字转换大小写 offset : "upper" - 字符串全转为大写 (strtoupper) "lower" - ...