正则表达式在PHP中拆分字母数字，货币和数字术语

Question

I am trying to split a string into terms in PHP using preg_split. I need to extract normal words ( \w ) but also currency ( even currency symbol ) and numeric terms ( including commas and decimal points ). Can anyone help me out, as I cannot seem to create a valid regex to use for preg_split to achieve this. Thanks

Answer 1

Why not use preg_match_all() instead of preg_split() ?

$str = '"1.545" "$143" "$13.43" "1.5b" "hello" "G9"'
  . ' This is a test sentence, with some. 123. numbers'
  . ' 456.78 and punctuation! signs.';

$digitsPattern = '\$?\d+(\.\d+)?';
$wordsPattern = '[[:alnum:]]+';

preg_match_all('/('.$digitsPattern.'|'.$wordsPattern.')/i', $str, $matches);

print_r($matches[0]);