；或正则表达式中的语句不起作用 - ;Or statement in Regular expression not working

;Or statement in Regular expression not working

我有两个html标签，比如：

$data ='<div style="background:url(img/img.jpg);color:blue"><div style="background-image:url(img/img2.jpg);color:black"></div></div>';

我使用正则表达式来获得图像路径，如：

if( preg_match_all("/background-image:url'((.*?)');/", $data, $backgroundImg) || preg_match_all("/background:url'((.*?)');/", $data, $backgroundImg) )

但每当我打印$backgroundImg时，它只显示第一个

Array
(
    [0] => Array
        (
            [0] => background-image:url(images/background.jpg);
        )
    [1] => Array
        (
            [0] => images/background.jpg
        )
)

如何获得第二个网址也。

试试这个：

$data = '<div style="background:url(img/img.jpg)"><div style="background-image:url(img/img2.jpg)"></div></div>';
preg_match_all("/background(?:-image)?:url'(([^)]+)')/", $data, $backgroundImg);
var_export($backgroundImg);

输出：

array (
    0 =>
        array (
            0 => 'background:url(img/img.jpg)',
            1 => 'background-image:url(img/img2.jpg)',
        ),
    1 =>
        array (
            0 => 'img/img.jpg',
            1 => 'img/img2.jpg',
        ),
)

regex中的(?:表示不进行任何捕获的子模式

<?php
    $data ='<div style="background:url(img/img.jpg)"><div style="background-image:url(img/img2.jpg)"></div></div>';
    if(preg_match_all('~'bbackground(-image)?'s*:(.*?)'('s*(''|")?(?<image>.*?)'3?'s*')~i',$data,$matches)){
        $images = $matches['image'];
        print_r($images);   
    }
?>

结果：

Array
(
    [0] => img/img.jpg
    [1] => img/img2.jpg
)