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ctype_graph (PHP 4 >= 4.0.4, PHP 5) ctype_graph -- Check for any printable character(s) except space Descriptionbool ctype_graph ( string text )
Checks if all of the characters in the provided string,
text, creates visible output.
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. |
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ctype_digit
