Check for any printable character(s) except space with ctype_graph in PHP
Description
The following code shows how to check for any printable character(s) except space with ctype_graph.
Example
/* w w w.java 2s.co m*/
<?php
$strings = array('string1' => "asdf\n\r\t", 'string2' => 'arf12', 'string3' => 'LKA#@%.54');
foreach ($strings as $name => $testcase) {
if (ctype_graph($testcase)) {
echo "The string '$name' consists of all (visibly) printable characters.\n";
} else {
echo "The string '$name' does not consist of all (visibly) printable characters.\n";
}
}
?>
The code above generates the following result.
