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phpregexpreg-replaceuppercasebold

Convert uppercase matches to bold using regex

i need to find all uppercase words in a string and set it bold

$_POST['descricao'] = "UPPERCASE test WORD"
$_POST['descricao'] = preg_replace("\b[A-Z]{2,}\b", "<b>\\1</b>", $_POST['descricao']);

it should return: <b>UPPERCASE</b> test <b>WORD</b>

Solution

  • You need to capture the group and enclose the pattern:

    preg_replace("/\b([A-Z]{2,})\b/", "<b>\\1</b>", $_POST['descricao']);