Question

正则表达式如何不匹配一段字符串

我有一段公式AvgAll(AK)AvgAll(K1)AvgAll(KKK)AvgAll(K_1)AvgAll(K+Y)AvgAll((K+Y)/J)AvgAll((K+Y)/AvgAll(K))我想用正则表达式筛选出AvgAll("不包含AvgAll")的字符串 该怎么写

Answer 1

$str = "AvgAll(AK)AvgAll(K1)AvgAll(KKK)AvgAll(K_1)AvgAll(K+Y)AvgAll((K+Y)/J)AvgAll((K+Y)/AvgAll(K))
";
$pattern_url = "/^((?!AvgAll).)*$/is";
if (preg_match($pattern_url, $str))
{
echo "不含有AvgAll！";
}
else
{
echo "含有AvgAll！";
}