ctype_punct
(PHP 4 >= 4.0.4, PHP 5)
ctype_punct --
Check for any printable character which is not whitespace or an
alphanumeric character
Description
bool
ctype_punct ( string text)
Returns TRUE if every character in text
is printable, but neither letter, digit or blank, FALSE otherwise.
例子 1. A ctype_punct() example
<?php
$strings = array('ABasdk!@!$#', '!@ # $', '*&$()');
foreach ($strings as $testcase) {
if (ctype_punct($testcase)) {
echo "The string $testcase consists of all punctuation.\n";
} else {
echo "The string $testcase does not consist of all punctuation.\n";
}
}
?>
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This example will output :
The string ABasdk!@!$# does not consist of all punctuation.
The string !@ # $ does not consist of all punctuation.
The string *&$() consists of all punctuation. |
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See also ctype_cntrl() and ctype_graph().