The ctype_space() function in PHP check for whitespace character(s). It returns TRUE if every character in text creates some sort of white space, FALSE otherwise. Besides the blank character this also includes tab, vertical tab, line feed, carriage return and form feed characters.
Syntax
ctype_space(str)
Parameters
str − The tested string
Return
The ctype_space() function returns TRUE if every character in text creates some sort of white space, FALSE otherwise. Besides the blank character this also includes tab, vertical tab, line feed, carriage return and form feed characters.
Example
The following is an example −
<?php
$arr = array(' ', '\test123' );
foreach ($arr as $demo) {
if (ctype_space($demo)) {
echo "$demo consists of all whitespace characters. \n";
} else {
echo "$demo does not have all whitespace characters. \n";
}
}
?>Output
consists of all whitespace characters. \test123 does not have all whitespace characters.
Example
<?php $str = " "; if (ctype_space($str)) echo "Whitespace!! \n"; else echo "No Whitespace character! \n"; ?>
Output
Whitespace!!