我有一个简单的功能,显然给我带来了很多麻烦。功能是:
function valid_mail($email) {
$atpointers = strstr($email, "@");
$spacepointers = count(explode(" ", $email));
$dotpointers = strstr($email, ".");
$ltpointers = strstr($email, "<");
$gtpointers = strstr($email, ">");
$illegalpts = $ltpointers + $gtpointers;
if($atpointers >= 2 || $dotpointers == 0 || strlen($email) <= 6 || $illegalpts >= 1) { return false; } else { return true; }
}
在上下文中调用它:
if(valid_mail($email) === false) { // Code } else { // Code }
问题显然只会返回false。为什么会发生这种情况的任何想法?
答案 0 :(得分:0)
strstr返回被检查字符串的substr,而不是长度。改为使用strpos。