Question

我试图重命名一些数组密钥，我已将这些数组密钥放入已与preg_match_all匹配的数组中以组织数据。

我有以下内容：

$array = [
    '1. first paragraph goes here',
    '<img src="http://www.xxs.com/image2asdasd.jpg">',
    '2. second paragraph is also here',
    '3. third paragraph is much longer then the rest',
    '<img src="http://www.xxs.com/image2asdasd.jpg">'
];

foreach($array as $string){
    if(preg_match_all("/(?:\d)\. (.*)/", $string, $output_array)) {
        foreach($output_array[0] as $instructions_output){
            $info[] = $instructions_output;
        }
    }
    if(preg_match_all("/<*img[^>]*src *= *[\"\']?([^\"\']*)/", $string, $cought_array)) {
        $info[] = $cought_array[1][0];
    }
}

如果我print_r($info)我得到以下内容：

Array
(
    [0] => 1. first paragraph goes here
    [1] => http://www.xxs.com/image2asdasd.jpg
    [2] => 2. second paragraph is also here
    [3] => 3. third paragraph is much longer then the rest
    [4] => http://www.xxs.com/image2asdasd.jpg
)

由于它们是由preg_match订购的，我想执行以下操作：

Array
(
    [text] => 1. first paragraph goes here
    [image] => http://www.xxs.com/image2asdasd.jpg
    [text] => 2. second paragraph is also here
    [text] => 3. third paragraph is much longer then the rest
    [image] => http://www.xxs.com/image2asdasd.jpg
)

我尝试了什么：

我尝试在我将其设置为$info['text'][]和$info['image'][]的位置重新命名，但这只是将它们分开，就像我在下面显示的那样。

Array
(
    [text] => Array
        (
            [0] => 1. first paragraph goes here
            [1] => 2. second paragraph is also here
            [2] => 3. third paragraph is much longer then the rest
        )

    [image] => Array
        (
            [0] => http://www.xxs.com/image2asdasd.jpg
            [1] => http://www.xxs.com/image2asdasd.jpg
        )
)

Answer 1

Array
(
    [text] => 1. first paragraph goes here
    [image] => http://www.xxs.com/image2asdasd.jpg
    [text] => 2. second paragraph is also here
    [text] => 3. third paragraph is much longer then the rest
    [image] => http://www.xxs.com/image2asdasd.jpg
)

这不是一个数组。如果有3个文本和2个图像索引，如何访问它？

Answer 2

要使用字符串键替换数组元素的索引，首先，将要替换的数组元素的原始值获取为字符串键。然后，删除数组元素。最后，使用键向数组添加一个新元素。 注意：在PHP中，您不能拥有两个或多个具有相同键的元素。
例如：

<?php

$value_backup = $array[0];
unset($array[0]);
$array['text'] = $value_backup;

?>

如何重命名preg_match_all排序的数组键？

2 个答案: