ctype_graph
(PHP 4 >= 4.0.4)
ctype_graph -- Check for any printable character(s) except
space
Description
bool ctype_graph ( string text)
Returns TRUE if every character in text is printable and
actually creates visible output (no white space), FALSE
otherwise.
Example 1. A ctype_graph() example
<?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";
}
}
?>
This example will output :
The string 'string1' does not consist of all printable
characters.
The string 'string2' consists of all printable characters.
The string 'string3' consists of all printable characters.
See also ctype_alnum(), ctype_print(), and ctype_punct().
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