ctype_space
(PHP 4 >= 4.0.4, PHP 5)
ctype_space — Check for whitespace character(s)
Description
bool ctype_space
( string $text
)
Checks if all of the characters in the provided string, text, creates whitespace.
Parameters
- text
-
The tested string.
Return Values
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.
Examples
Example #1 A ctype_space() example
<?php
$strings = array('string1' => "\n\r\t", 'string2' => "\narf12", 'string3' => '\n\r\t');
foreach ($strings as $name => $testcase) {
if (ctype_space($testcase)) {
echo "The string '$name' consists of all whitespace characters.\n";
} else {
echo "The string '$name' does not consist of all whitespace characters.\n";
}
}
?>
The above example will output:
The string 'string1' consists of all whitespace characters. The string 'string2' does not consist of all whitespace characters. The string 'string3' does not consist of all whitespace characters.
See Also
- ctype_cntrl() - Check for control character(s)
- ctype_graph() - Check for any printable character(s) except space
- ctype_punct() - Check for any printable character which is not whitespace or an alphanumeric character