Podręcznik PHP
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ctype_graph

(PHP 4 >= 4.0.4, PHP 5)

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

Opis

bool ctype_graph ( string text )

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

Parametry

text

The tested string.

Zwracane wartości

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

Przykłady

Przykład 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";
    }
}
?>

Powyższy przykład wyświetli:

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.

Patrz także

ctype_alnum()
ctype_print()
ctype_punct()

PoprzedniSpis treściNastępny
ctype_digitPoczątek rozdziałuctype_lower

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Generated: 2007-01-26 18:02:42