GoLang ctype_print

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PHP ctype_print

PHP original manual for ctype_print [ show | php.net ]

ctype_print

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

ctype_print — Check for printable character(s)

Description

bool ctype_print ( string $text )

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

Parameters

text

The tested string.

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.

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.

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
  • ctype_punct() - Check for any printable character which is not whitespace or an alphanumeric character