(PHP 4 >= 4.0.4, PHP 5, PHP 7)
ctype_print — Check for printable character(s)
$text
)
Checks if all of the characters in the provided string,
text
, are printable.
text
The tested string.
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";
}
}
?>
위 예제의 출력:
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.
Note:
-128이상 255이하의 integer를 지정할 경우, 한 문자의 ASCII 값으로 해석합니다. (음수는 256이 더해져 확장 ASCII 영역의 문자가 됩니다) 그 외의 정수는 그 정수를 표현하는 10진 문자열로 해석합니다.