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 PHP manuál : function.ctype-punct.html

ctype_punct
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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 )

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.

See Also

ctype_cntrl()
ctype_graph()

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