A space character is considered an ICU space character if and only if it meets one of the following criteria:
- This is a Unicode delimiter character (categories "Z" = "Zs" or "Zl" or " Zp "), but it is also not a non-breaking space (U + 00A0 NBSP or U + 2007, space or U + 202F Narrow NBSP).
- U + 000A LINE FEED.
- U + 000B VERTICAL TABLE.
- U + 000C FORM FORM.
- U + 000D RETURN.
- U + 001C FILE SEPARATOR
- U + 001D GROUP SEPARATOR.
- U + 001E SEPARATOR ENTRY.
- U + 001F UNIT SEPARATOR.
- U + 0009 HORIZONTAL TABULATION.
Syntax:bool IntlChar::isWhitespace ($codepoint)
Parameters :This function accepts a single
$codepoint parameter which is required. The input parameter is a character or integer value encoded as
UTF-8 string.
Returned value:if
$codepoint is a whiteSpace character according to ICU, then it returns True, otherwise it returns False.Below programs illustrate the IntlChar::isWhitespace()function in PHP: Program 1:
// PHP code for illustration
// IntlChar::iswhitespace() function
// Enter capital letter var_dump (IntlChar::iswhitespace ( "R" ));
// Enter a lowercase letter var_dump (IntlChar::iswhitespace ( "r" ));
// Enter the Whitesapce character & quot; / n & quot; var_dump (IntlChar::iswhitespace ( "" )) ;
// Enter the encoded string var_dump (IntlChar::iswhitespace ( "u {00A0}" ));
// Enter a space character var_dump (IntlChar::iswhitespace ( "" ));
?> Exit : bool (false) NULL bool (true) bool (false) bool (true)
Program 2:
// PHP code for IntlChar::iswhitespace()
// function
// Declare the $arr array $arr = array ( "" , "" , "^" , " " , " G " );
// run loop for each array element foreach ( $arr as $val ) { // Validate each element as code point data var_dump (IntlChar::iswhitespace ( $val )); }
?> Exit : bool (true) bool (true) bool (false) bool (true) NULL
Related Articles: - IntlChar::isalpha() Function
- IntlChar::isbase() Function
- IntlChar::isblank() Function
- IntlChar::iscntrl() Function
Links: http://php.net/manual/en/iswhitespace
