ctype_print
ctype_print
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.