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
$text
)
Checks if all of the characters in the provided string,
text, are punctuation character.
Parameters
-
text -
The tested string.
Return Values
Returns TRUE if every character in text
is printable, but neither letter, digit or blank, FALSE otherwise.
Examples
Example #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 $testcase does not consist of all punctuation.\n";
}
}
?>
The above example will output:
The string ABasdk!@!$# does not consist of all punctuation. The string !@ # $ does not consist of all punctuation. The string *&$() consists of all punctuation.
Notes
Note:
If an integer between -128 and 255 inclusive is provided, it is interpreted as the ASCII value of a single character (negative values have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string containing the decimal digits of the integer.
See Also
- ctype_cntrl() - Check for control character(s)
- ctype_graph() - Check for any printable character(s) except space
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