Check for any printable character(s) except space

ctype_digit
ctype_lower
Ctype Functions
PHP Manual

# ctype_graph

(PHP 4 >= 4.0.4, PHP 5)

ctype_graph — Check for any printable character(s) except space

### Description

bool ctype_graph ( string `$text` )

Checks if all of the characters in the provided string, `text`, creates visible output.

### Parameters

`text`

  The tested string.

### Return Values

Returns `TRUE` if every character in `text` is printable and actually creates visible output (no white space), `FALSE` otherwise.

### Examples

Example #1 A ctype_graph() example

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

The above example will output:

    The string 'string1' does not consist of all (visibly) printable characters.
    The string 'string2' consists of all (visibly) printable characters.
    The string 'string3' consists of all (visibly) 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_alnum() - Check for alphanumeric character(s)
- ctype_print() - Check for printable character(s)
- ctype_punct() - Check for any printable character which is not whitespace or an alphanumeric character

ctype_digit
ctype_lower
Ctype Functions
PHP Manual