Php 如何在preg“u match”all中生成正则表达式；及；

如何在preg_match_all“and”中生成正则表达式

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/cork&瓶子/i

不起作用

这是我使用的方法：

$string = 'The mouse to nibble the cork from the bottle russia king.';
preg_match_all("/^(?=.*(cork))(?=.*(bottle))/i", $string, $matches);
print_r($matches);

输出：

Array
(
    [0] => Array
        (
            [0] => 
        )

    [1] => Array
        (
            [0] => cork
        )

    [2] => Array
        (
            [0] => bottle
        )

)

/                   : regex delimiter
    ^               : begining of line
    (?=             : start lookahead
        .*          : 0 or more any character
        (\bcork\b)  : capture group #1 that contains "cork" with word boundaries
    )               : end of look ahead
    (?=             : start lookahead
        .*          : 0 or more any character
        (\bottle\b) : capture group #2 that contains "bottle" with word boundaries
    )               : end of look ahead
/i                  : regex delimiter, case insensitive                

说明：

Array
(
    [0] => Array
        (
            [0] => 
        )

    [1] => Array
        (
            [0] => cork
        )

    [2] => Array
        (
            [0] => bottle
        )

)

/                   : regex delimiter
    ^               : begining of line
    (?=             : start lookahead
        .*          : 0 or more any character
        (\bcork\b)  : capture group #1 that contains "cork" with word boundaries
    )               : end of look ahead
    (?=             : start lookahead
        .*          : 0 or more any character
        (\bottle\b) : capture group #2 that contains "bottle" with word boundaries
    )               : end of look ahead
/i                  : regex delimiter, case insensitive                

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评估是否需要按指定的顺序进行，或者可以按任何顺序进行？