如何用PHP正则提取括号内不含text*等前缀的目标内容？

Got it, let's break down how to adjust your regex to get exactly what you need.

Your original regex \[([^]]+)] grabs everything inside the square brackets, but we need to tweak it to ignore those prefixes like text*, email*, or textarea and only keep the identifier part after them.

The Updated Regex #

Use this pattern:

\[(?:\w+\*?\s+)?([^\]]+)]

How It Works #

Let's break down each part clearly:

• \[: Matches the opening square bracket (escaped because [ is a special regex character)
• (?:\w+\*?\s+)?: This is a non-capturing group (the ?: means we don't save this part) that handles optional prefixes:
  • \w+: Matches one or more word characters (covers prefixes like text, email, textarea)
  • \*?: Matches an optional asterisk (for prefixes like text* or email*)
  • \s+: Matches one or more spaces separating the prefix from your target content
  • ?: Makes the entire prefix group optional, so it works for cases like [area-without-attribute] where there's no prefix at all
• ([^\]]+): This is the capturing group we care about—it matches all characters except the closing square bracket, which is exactly the identifier you want to keep
• \]: Matches the closing square bracket

How to Use It #

When you run this regex against your input string, extract all matches from the first capturing group. For your sample input:

Je naam (verplicht) [text* your-test] Je e-mailadres (verplicht) [email* your-tester] Onderwerp [text your-testerer] Je bericht [textarea your-testererer] [area-without-attribute] 1

You'll get the exact output you're looking for:

your-test your-tester your-testerer your-testererer area-without-attribute

Quick Adjustment Note #

If your prefixes ever include characters like hyphens (e.g., [custom-field* your-id]), you can update the \w+ to [\w-]+ to cover those edge cases.

内容的提问来源于stack exchange，提问作者Some Name