PHP如何匹配并提取以[开头、/]结尾的子串内部内容

To pull out the content between [ and /] from your string and get it into an array, the most straightforward approach is using PHP's preg_match_all() function with a tailored regular expression. Here's how to implement it:

Step-by-Step Solution #

1. Set up your input string:

   $stringText = 'Example text [1212sdas|4542189789/] continue text...';
   

2. Use a regex pattern to target the desired content:
   The pattern /\[([^\]]*?)\// is designed specifically for this case:

   • \[ matches the opening square bracket (escaped because [ is a special regex character)
   • ([^\]]*?) captures any characters except a closing square bracket (the *? makes it non-greedy, so it stops at the first matching / instead of overshooting)
   • \/ matches the forward slash right before the closing bracket (escaped since / acts as the regex delimiter)

3. Run the match and extract the result array:

   preg_match_all('/\[([^\]]*?)\//', $stringText, $matches);
   $resultArray = $matches[1]; // The captured content lives in the first group of matches
   

Example Output #

If you run print_r($resultArray), you’ll get exactly what you need:

Array
(
    [0] => 1212sdas|4542189789
)

Bonus Notes #

• If your string has multiple instances of [.../], this code will automatically capture all of them into the array.
• The non-greedy quantifier ensures we don’t accidentally match from the first [ to the last /] when multiple occurrences exist.

内容的提问来源于stack exchange，提问作者Rafael Furtado