ctype_graph

(PHP 4 >= 4.0.4, PHP 5)

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

Descrição

bool ctype_graph ( string text )

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

Parâmetros

text

The tested string.

Valores de retornado

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

Exemplos

Exemplo 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";
    }
}
?>

O exemplo acima irá imprimir:

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.

Veja também

ctype_alnum()
ctype_print()
ctype_punct()