Check for printable character(s)

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- PHP Manual
- Ctype Functions
- Check for printable character(s)

# ctype_print

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

ctype_print — Check for printable character(s)

### Description

ctype_print(mixed `$text`): bool

Checks if all of the characters in the provided string, `text`, are printable.

### Parameters

`text`

  The tested string.

  > Note:

  > If an int 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.

  Warning

  As of PHP 8.1.0, passing a non-string argument is deprecated. In the future, the argument will be interpreted as a string instead of an ASCII codepoint. Depending on the intended behavior, the argument should either be cast to string or an explicit call to chr() should be made.

### Return Values

Returns `true` if every character in `text` will actually create output (including blanks). Returns `false` if `text` contains control characters or characters that do not have any output or control function at all. When called with an empty string the result will always be `false`.

### Examples

Example #1 A ctype_print() example

    <?php
    $strings = array('string1' => "asdf\n\r\t", 'string2' => 'arf12', 'string3' => 'LKA#@%.54');
    foreach ($strings as $name => $testcase) {
        if (ctype_print($testcase)) {
            echo "The string '$name' consists of all printable characters.\n";
        } else {
            echo "The string '$name' does not consist of all printable characters.\n";
        }
    }
    ?>

The above example will output:

    The string 'string1' does not consist of all printable characters.
    The string 'string2' consists of all printable characters.
    The string 'string3' consists of all printable characters.

### See Also

- ctype_cntrl() - Check for control character(s)
- ctype_graph() - Check for any printable character(s) except space
- ctype_punct() - Check for any printable character which is not whitespace or an alphanumeric character
- IntlChar::isprint() - Check if code point is a printable character