php检查变量长度是否等于某个值

Question

需要检查$ message长度是否为7个字符或更少,如果是,请执行操作A,如果不是,请执行操作B.这是正确的语法吗？我觉得我做错了什么？

<?php

if (strlen($message) <= 7) {
    echo $actiona;
} else {
    echo $actionb;
}

?>

Answer 1

没关系.例如,让我们运行以下代码:

<?php

$message = "Hello there!";

if (strlen($message) <= 7){
    echo "It is less than or equal to 7 characters.";
} 
else 
{
    echo "It is greater than 7 characters.";
}
?>

它将打印:"它大于7个字符."