PHP | IntlChar::isspace() Function Last Updated : 11 Jul, 2025 Summarize Comments Improve Suggest changes Share Like Article Like Report The IntlChar::isspace() function is an inbuilt function in PHP which is used to check whether the given input character is a space character or not. Syntax: bool IntlChar::isspace( $codepoint ) Parameters: This function accepts a single parameter $codepoint which is mandatory. The input parameter is an integer value or character, which is encoded as UTF-8 string. Return Value: If $codepoint is a space character then it returns True, otherwise return False. Below programs illustrate the IntlChar::isspace() function in PHP: Program 1: PHP <?php // PHP code to illustrate IntlChar::isspace() // function // Input data is space character var_dump(IntlChar::isspace("\n")); // Input character is control or space character var_dump(IntlChar::isspace("\t")); // Input data is string type var_dump(IntlChar::isspace("Geeksforgeeks")); // Input data is number type var_dump(IntlChar::isspace("2018")); // Input data is single digit var_dump(IntlChar::isspace("5")); // Input data is punctuation character dot var_dump(IntlChar::isspace(".")); // Input data is space character var_dump(IntlChar::isspace(" ")); ?> Output: bool(true) bool(true) NULL NULL bool(false) bool(false) bool(true) Note: If String and Numbers (except single digit number) are used as a parameter then it returns NULL. Program 2: PHP <?php // PHP code to illustrate IntlChar::isspace() // Declare an array $arr $arr = array(" ", "\n", "\r", "\t", "Geeks", ".", "G", "0"); // Loop run for every array element foreach ($arr as $val){ // Check each element as code point data var_dump(IntlChar::isspace($val)); } ?> Output: bool(true) bool(true) bool(true) bool(true) NULL bool(false) bool(false) bool(false) Related Articles: PHP | IntlChar::isblank() FunctionPHP | IntlChar::iscntrl() FunctionPHP | IntlChar::isprint() Function Reference: https://www.php.net/manual/en/intlchar.isspace.php Comment More infoAdvertise with us Next Article PHP | IntlChar::isUWhiteSpace() Function M Mithun Kumar Follow Improve Article Tags : Misc Web Technologies PHP PHP-function PHP-Intl +1 More Practice Tags : Misc Similar Reads PHP | IntlChar::isWhitespace() Function The IntlChar::isWhitespace() function is an inbuilt function in PHP which is used to check whether the given input character is a WhiteSpace character or not according to ICU. IntlChar access number utility function and used to access the information about Unicode Characters. The White Space charact 2 min read PHP | IntlChar::isUWhiteSpace() Function The IntlChar::isUWhiteSpace() function is an inbuilt function in PHP which is used to check whether the given input character is a WhiteSpace Unicode character or not. IntlChar accesses a number utility function and used to access the information about Unicode Characters. Syntax: bool IntlChar::isUW 2 min read PHP IntlChar::isbase() Function PHP IntlChar::isbase() function is an inbuilt function in PHP that is used to check whether the given input data is a base character or not. If the specified code point is a base character then it returns TRUE for general categories "L" (Letters), "N" (numbers), "Mc" (spacing combining marks), and " 2 min read PHP | IntlChar::isalpha() Function The IntlChar::isalpha() function is an inbuilt function in PHP which is used to check the given input is an alphanumeric character or not. Syntax: bool IntlChar::isalpha( $codepoint ) Parameters: The IntlChar::isalpha() function accept single parameter $codepoint which is mandatory. The input parame 1 min read PHP | IntlChar::ispunct() Function The IntlChar::ispunct() function is an inbuilt function in PHP which is used to check whether the given input character is a punctuation character or not. Syntax: bool IntlChar::ispunct( $codepoint ) Parameters: This function accepts a single parameter $codepoint which is mandatory. The input parame 2 min read PHP | IntlChar::isupper() Function The IntlChar::isupper() function is an inbuilt function in PHP which is used to check whether the given input character is an uppercase character or not. Syntax: bool IntlChar::isupper( $codepoint ) Parameters: This function accepts a single parameter $codepoint which is mandatory. The input paramet 2 min read Like