Question

我在div内有一个带有链接的字符串。如何使用正确的正则表达式进行解析？

我需要获取此值的数组，如下所示：

[
"/media/filer_public/b6/49/b6491a4d-5c0d-4a0f-aa9c-b32ea39912c6/category-2.jpg", 
"/media/filer_public/93/65/9365c3bc-8649-4d9d-932e-144f16ed535c/category-3.jpg"
]

基本HTML（示例）：

               <a href="/napolnye-pokrytiya/" class="category_cart">
                    <div class="category_cart__container">
                        <div style="background-image: url('/media/filer_public/b6/49/b6491a4d-5c0d-4a0f-aa9c-b32ea39912c6/category-2.jpg')" class="category_cart__thumbnail"></div>
                        <div class="category_cart__content">
                            <p class="category_cart__title">Напольные покрытия</p>
                        </div>
                    </div>
                </a>

                <a href="/oboi/" class="category_cart">
                    <div class="category_cart__container">
                        <div style="background-image: url('/media/filer_public/93/65/9365c3bc-8649-4d9d-932e-144f16ed535c/category-3.jpg')" class="category_cart__thumbnail"></div>
                        <div class="category_cart__content">
                            <p class="category_cart__title">Обои</p>
                        </div>
                    </div>
                </a>

Answer 1

您应该使用DOMDocument和DOMXPath或类似的东西，但是如果您想用regexp来完成，对于给定的html，这应该可以解决问题：

<?php 

$html_code = 
'<a href="/napolnye-pokrytiya/" class="category_cart">
    <div class="category_cart__container">
        <div style="background-image: url(\'/media/filer_public/b6/49/b6491a4d-5c0d-4a0f-aa9c-b32ea39912c6/category-2.jpg\')" class="category_cart__thumbnail"></div>
            <div class="category_cart__content">
                <p class="category_cart__title">Напольные покрытия</p>
            </div>
        </div>
</a>

<a href="/oboi/" class="category_cart">
    <div class="category_cart__container">
        <div style="background-image: url(\'/media/filer_public/93/65/9365c3bc-8649-4d9d-932e-144f16ed535c/category-3.jpg\')" class="category_cart__thumbnail"></div>
            <div class="category_cart__content">
                <p class="category_cart__title">Обои</p>
            </div>
        </div>
</a>';

//it will look for match between url(' and ')
preg_match_all('/url\(\'(.*?)\'\)/', $html_code, $matches_array);
echo '<pre>';
var_dump($matches_array);
echo '</pre>';

$your_array = array();
//matches including url(' and ') are stored in $matches_array[0], excluded in $matches_array[1] so
foreach($matches_array[1] as $match) {

    $your_array[] = $match;

}
echo '<pre>';
var_dump($your_array);
echo '</pre>';
?>

输出：

array(2) {
  [0]=>
  array(2) {
    [0]=>
    string(84) "url('/media/filer_public/b6/49/b6491a4d-5c0d-4a0f-aa9c-b32ea39912c6/category-2.jpg')"
    [1]=>
    string(84) "url('/media/filer_public/93/65/9365c3bc-8649-4d9d-932e-144f16ed535c/category-3.jpg')"
  }
  [1]=>
  array(2) {
    [0]=>
    string(77) "/media/filer_public/b6/49/b6491a4d-5c0d-4a0f-aa9c-b32ea39912c6/category-2.jpg"
    [1]=>
    string(77) "/media/filer_public/93/65/9365c3bc-8649-4d9d-932e-144f16ed535c/category-3.jpg"
  }
}
array(2) {
  [0]=>
  string(77) "/media/filer_public/b6/49/b6491a4d-5c0d-4a0f-aa9c-b32ea39912c6/category-2.jpg"
  [1]=>
  string(77) "/media/filer_public/93/65/9365c3bc-8649-4d9d-932e-144f16ed535c/category-3.jpg"
}

如何通过正则表达式收集HTML-div中的url文本？

1 个答案: