CTYPE_GRAPH(3) 1 CTYPE_GRAPH(3)
ctype_graph - Check for any printable character(s) except space
SYNOPSIS
bool ctype_graph (string $text)
DESCRIPTION
Checks if all of the characters in the provided string, $text, creates visible output.
PARAMETERS
o $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(3) example
<?php
$strings = array('string1' => "asdf
", 'string2' => 'arf12', 'string3' => 'LKA#@%.54');
foreach ($strings as $name => $testcase) {
if (ctype_graph($testcase)) {
echo "The string '$name' consists of all (visibly) printable characters.
";
} else {
echo "The string '$name' does not consist of all (visibly) printable characters.
";
}
}
?>
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 val-
ues have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string contain-
ing the decimal digits of the integer.
SEE ALSO
ctype_alnum(3), ctype_print(3), ctype_punct(3).
PHP Documentation Group CTYPE_GRAPH(3)
