ctype_graph

(PHP 4 >= 4.0.4, PHP 5)

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

Leírás

bool ctype_graph ( string text )

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

Paraméterek

text

The tested string.

Visszatérési értékek

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

Példák

Példa 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";
    }
}
?>

A fenti példa a következő kimenetet adja:

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.

Lásd még

ctype_alnum()
ctype_print()
ctype_punct()