ctype_graph

(PHP 4 >= 4.0.4, PHP 5)

ctype_graph -- Check for any printable character(s) except space

Beskrivelse

bool ctype_graph ( string text )

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

Parameterliste

text

The tested string.

Returneringsværdier

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

Eksempler

Eksempel 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";
    }
}
?>

Ovenstående eksempel vil udskrive:

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.

Se også

ctype_alnum()
ctype_print()
ctype_punct()