ctype_print

函数原型

范例(上例将输出：)

ctype_print

(PHP 4 >= 4.0.4, PHP 5)

ctype_print -- 检查打印字符

函数原型

bool ctype_print ( string text )

检查打印字符

范例

<?php

$strings = array('string1' => "asdf\\\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.\";

} else {

echo "The string '$name' does not consist of all printable characters.\";

}

}

?>

上例将输出：

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.