php正則表達式提取數字，字符串中提取數字

<?php
    $str = "請注意：有誰知道30901.5號路怎么走？這個因為我買了100塊的燒餅和7901的鑰匙了，那個對了，我再拿個30000";
    $pattern = '/(\d+\.?\d+)/';

    //$pattern = '/(\d+)\.?(\d+)/';
    // $str = "42.234 EUR 53.218 AUD CAD97.164 311.151 MYR 125.042 NZD GBP84.270 SGD60.227 USD134.400";

    if(preg_match_all($pattern, $str, $match)){
        echo '<pre>';
        print_r($match);
    }else{
        echo '沒有找到！';
    }
?> 

 

結果

Array
(
    [0] => Array
        (
            [0] => 30901
            [1] => 100
            [2] => 7901
            [3] => 30000
        )

    [1] => Array
        (
            [0] => 30901
            [1] => 100
            [2] => 7901
            [3] => 30000
        )

)