ctype_digitctype_graph
(PHP 4 >= 4.0.4, PHP 5)
ctype_graph — Check for any printable character(s) except space
Popis
bool ctype_graph ( string $text )Checks if all of the characters in the provided string, text, creates visible output.
Seznam parametrů
- text
The tested string.
Návratové hodnoty
Returns TRUE if every character in text is printable and actually creates visible output (no white space), FALSE otherwise.
Příklady
Příklad 309. 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";
}
}
?>
Výše uvedený příklad vypíše:
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.
Viz také
| ctype_alnum() |
| ctype_print() |
| ctype_punct() |
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