The ctype_graph() function check for any printable character(s) except space. It returns TRUE if every character in the string text is a decimal digit, FALSE otherwise.
Syntax
ctype_graph(str)
Parameters
str − The tested string.
Return
The ctype_graph() function returns TRUE if every character in text is printable and actually creates visible output (no white space), FALSE otherwise.
Example
The following is an example −
<?php
$arr = array('khy\n\r\t', 'arf12', 'LKA#@%.54');
foreach ($arr as $demo) {
if (ctype_graph($demo)) {
echo "$demo consists of all (visibly) printable characters \n";
} else {
echo "$demo does not have all (visibly) printable characters. \n";
}
}
?>Output
khy\n\r\t consists of all (visibly) printable characters. arf12 consists of all (visibly) printable characters LKA#@%.54 consists of all (visibly) printable characters