ctype_alpha

函数原型

范例(上例将输出：)

ctype_alpha

(PHP 4 >= 4.0.4, PHP 5)

ctype_alpha -- 检查字母

函数原型

bool ctype_alpha ( string text )

检查字母

范例

<?php

$strings = array('KjgWZC', 'arf12');

foreach ($strings as $testcase) {

if (ctype_alpha($testcase)) {

echo "The string $testcase consists of all letters.\";

} else {

echo "The string $testcase does not consist of all letters.\";

}

}

?>

上例将输出：

The string KjgWZC consists of all letters. The string arf12 does not consists of all letters.