正则表达式数字字符串数字字符串循环 [英] Regex number string number string loop

问题描述

我的字符串是:

$str='Move 10 Casio Watch 20 Apple Iphone 100 Apple Macbook to store';

我用过:

preg_match_all('| ([0-9]+) (.*) |', $str, $matches);

但它只匹配产品名称的第一个字母.

But it only matches the first letter of the product name.

我的结果:

Array
(
    [0] => Array
        (
            [0] =>  10 Casio 
            [1] =>  20 Apple 
            [2] =>  100 Apple 
        )

    [1] => Array
        (
            [0] => 10
            [1] => 20
            [2] => 100
        )

    [2] => Array
        (
            [0] => Casio
            [1] => Apple
            [2] => Apple
        )
)

推荐答案

Regex: \d+ \K(?: ?[AZ][az]+)+

详情:

• \d+ 匹配一次到无限次之间的数字
• \K 重置报告匹配的起点
• (?:) 非捕获组
• ? 匹配 0 次和 1 次之间的空格字符
• [A-Z] 匹配大写字符
• [a-z]+ 匹配一次和无限次之间的小写字符
• (?:)+ 在一次和无限次之间重复匹配

• \d+ matches a digit between one and unlimited times
• \K resets the starting point of the reported match
• (?:) non-capturing group
• ? Match space char between zero and one times
• [A-Z] match upper case char
• [a-z]+ match lower case char between one and unlimited times
• (?:)+ repeat matching between one and unlimited times

PHP 代码:

$str = 'Move 10 Casio Watch 20 Apple Iphone 100 Apple Macbook to store';
preg_match_all("~\d+ \K(?: ?[A-Z][a-z]+)+~", $str, $matches);
print_r($matches[0]);

输出:

Array
(
    [0] => Casio Watch
    [1] => Apple Iphone
    [2] => Apple Macbook
)

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