PHP | IntlChar::isspace() Function

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) 

Reference: http://php.net/manual/en/intlchar.isspace.php