ctype_print
(PHP 4 >= 4.0.4)
ctype_print -- Check for printable character(s)
Description
bool ctype_print ( string text)
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.
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";
}
}
?>
This 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(), ctype_graph(), and ctype_punct().
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