Pregex 不匹配正确的模式

Question

当我尝试用正则表达式匹配一个字符串时，它不起作用。但是，据我所知，我认为正则表达式规则很好。谁能帮我找出我的表情中缺少什么。

匹配样本

HAD-ORAAS0001545-ORBTD0003457
HAD-ORBTD0001545-ORAAS0003457

<?php
print_r((preg_match('/^HAD-OR[AAS,BTD][0-9]{5,7}$/','HAD-ORBTD0009999',$m)));
?>

Answer 1

根据您展示的示例，请您尝试以下操作。在线正则表达式演示：Online regex demo

^HAD(?:-OR(?:AAS|BTD)[0-9]{5,7}){1,2}$

说明： 为以上添加详细说明。

^HAD                     ##Checking if it starts with HAD.
(?:                      ##Starting non capturing group from here.
-OR                      ##Matching -OR string here.
(?:                      ##Starting a non-capturing group here.
AAS|BTD                  ##Matching either AAS OR BTD here.
)                        ##Closing non-capturing group here.
[0-9]{5,7}               ##Putting digits should come with occurrences of 5 to 7 here.
)                        ##Closing very first non capturing group here.
{1,2}$                   ##Mentioning that either it should be 1 or 2 occurrences of whole first non capturing group.

Pregex 不匹配正确的模式

Pregex is not matching the correct pattern

php

regex

preg-match-all