在 PHP 7.4 中，判断变量值是否为 uri 格式的数据
1、现在需要从一个一维数组中取出 uri 格式的数据。一维数组的打印结果，如图1
图1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | array(134) { [14]=> bool(false) [15]=> string(0) "" [16]=> string(6) "center" [17]=> string(7) "#ffffff" [18]=> string(95) "https://xxx.s3.us-east-2.amazonaws.com/image/736589fac73c7dfdbf61efadb49a95fb9af16efb.jpeg" [19]=> string(30) "<p>Image with text overlay</p>" [20]=> string(8) "Shop Now"} |
2、基于 filter_var 代码实现如下，打印结果如下，不符合预期，其中存在：internal://policy_pages/29
1 2 3 4 | foreach ($images->all() as $image) { var_dump($image, filter_var($image, FILTER_VALIDATE_URL)); echo "\n";} |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | string(11) "collections"bool(false)bool(false)bool(false)string(6) "center"bool(false)string(4) "grid"bool(false)string(18) "this is collection"bool(false)string(19) "main-index-carousel"bool(false)string(5) "slide"bool(false)bool(false)bool(false)string(0) ""bool(false)string(6) "center"bool(false)string(7) "#ffffff"bool(false)string(95) "https://xxx.us-east-2.amazonaws.com/image/736589fac73c7dfdbf61efadb49a95fb9af16efb.jpeg"string(95) "https://xxx.us-east-2.amazonaws.com/image/736589fac73c7dfdbf61efadb49a95fb9af16efb.jpeg"string(30) "<p>Image with text overlay</p>"bool(false)string(8) "Shop Now"bool(false)string(26) "internal://policy_pages/29"string(26) "internal://policy_pages/29" |
3、通过函数 parse_url 获取 scheme，判断是否为 http 或者 https。最后的过滤结果如下，符合预期。如图2
图2
1 2 3 4 5 6 | $images = collect($data['sections'])->flatten()->reject(function ($image) { return !filter_var($image, FILTER_VALIDATE_URL);})->reject(function ($image) { return !in_array(parse_url($image, PHP_URL_SCHEME), ['http', 'https']);});var_dump($images); |
1 2 3 4 5 6 7 8 9 10 11 12 13 | object(Illuminate\Support\Collection)#4918 (1) { ["items":protected]=> array(4) { [10]=> string(107) "https://cdn.xxx.com/image/2022/04/fa5d91ba9fd60ef1b050560895d2f15c02852f0d9669654de4c01c8b404af3f3.jpeg" [24]=> string(95) "https://xxx.us-east-2.amazonaws.com/image/736589fac73c7dfdbf61efadb49a95fb9af16efb.jpeg" [41]=> string(95) "https://xxx.us-east-2.amazonaws.com/image/7a204816a9625475044c8196bfb154b39aa3f12b.jpeg" [129]=> string(95) "https://xxx.us-east-2.amazonaws.com/image/736589fac73c7dfdbf61efadb49a95fb9af16efb.jpeg" }} |
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