Question 40480 in PHP Question posted in
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get text within bracket if matches keyword – PHP

So I want to get the text within the square brackets(without brackets) if a keyword is matched within the brackets.

so the keyword works but for example "test [work all day] test" it returns everything in the brackets and outside as well .

so far i have the below, but I only want it to return everything within the brackets(without bracekts) if the keyword "work" is matched within the brackets.

preg_match('/.*([work.*?]).*/', $res, $match)
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3

Answers


  1. 0

    I don’t know about php, but I can provide an answer for the regex pattern.

    Use this:

    (?<=[)work[^]]*

    Explanation:

    • (?<=[): lookbehind to verify that the string begins with an open bracket
    • work: literal match
    • [^]]*: negated character class with * quantifier which matches every other character except a closed bracket (the first closed bracket is escaped)

    Now, you get a string which is preceded with an open bracket, and is matched up to the point before the closing bracket.

    Verify here

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  2. 0

    I’m not certain of the specifics for using this in PHP, but it works in JavaScript this way.

    let src = "test [work all day] test"
console.log(src.replace( /.*[(work.*?)].*/g, "$1"));

    Please put the part you want to extract in parentheses and replace the entire string with $1.

    $1 refers to the contents of the first parenthesis.
    It will be helpful for you.

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  3. 0

    You could match work between the square brackets, assuming there are no occurrences of other square brackets in between.

    [K[^][]*bworkb[^][]*(?=])

    Explanation

    • [ Match [
    • K Forget what is matched so far
    • [^][]* Match optional chars other than [ or ]
    • bworkb Match the word work
    • [^][]* Match optional chars other than [ or ]
    • (?=]) Positive lookahead, assert ] to the right

    See a regex101 demo.

    $res = "test [work all day] test";
$pattern = '/[K[^][]*bworkb[^][]*(?=])/';

if (preg_match($pattern, $res, $match)) {
    echo $match[0];
}

    Output

    work all day
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