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ctype_graph

Check for any printable character(s) except space (PHP 4 >= 4.0.4, PHP 5)
bool ctype_graph ( string text )

Checks if all of the characters in the provided string, text, creates visible output.

Parameters

text

The tested string.

Return Values

Returns TRUE if every character in text is printable and actually creates visible output (no white space), FALSE otherwise.

Examples

Example 420. 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";
   }
}
?>

The above example will output:

The string 'string1' does not consist of all (visibly) printable characters.
The string 'string2' consists of all (visibly) printable characters.
The string 'string3' consists of all (visibly) printable characters.