ctype_punct
(PHP 4 >= 4.0.4, PHP 5)
ctype_punct --
Check for any printable character which is not whitespace or an
alphanumeric character
说明
bool
ctype_punct
( string text )
Checks if all of the characters in the provided string,
text
, are punctuation character.
返回值
Returns
TRUE
if every character in
text
is printable, but neither letter, digit or blank,
FALSE
otherwise.
范例
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 $testcase does not consist of all punctuation.
\n
"
;
}
}
?>
|
上例将输出：
The string ABasdk!@!$# does not consist of all punctuation.
The string !@ # $ does not consist of all punctuation.
The string *&$() consists of all punctuation.
|
|