Matching Newline Characters in Regular Expressions
You have a string with characters, whitespace, and newlines between
Solution 1: DOTALL Modifier (s)
Use the DOTALL modifier (s), which makes the dot (.) match newlines:
'/<div>(.*)<\/div>/s'
Solution 2: Non-Greedy Match
To prevent greedy matching, use a non-greedy match with *?:
'/<div>(.*?)<\/div>/s'
Solution 3: Exclude < If Other Tags Are Not Present
You can match everything except < if there aren't other tags:
'/<div>([^<]*)<<\/div>/''
Note on Regex Delimiters
You can use characters other than / as regular expression delimiters, which allows for easier escaping of special characters:
'#<div>([^<]*)<<\/div>#'
Caution
These solutions may fail for nested divs, extra whitespace, HTML comments, and other complexities. Consider using an HTML parser for reliable HTML parsing.
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