douliaotong4944 2016-09-02 05:33
浏览 74
已采纳

preg_match_all不匹配所有可能性

I'm trying to retrieve all matches however I am only receiving one

Here is my string

$html = '<p> This is my Home Page.</p><p><span style="line-height: 1.42857;">{{ type="slider" }} </span></p><p> </p>';

If you see string contain {{ type="slider" }} , now if i write this string only once i am getting my expected result, but if i write it multiple times in html sting like {{ type="slider" }} {{ type="banned" }} {{ type="testimonial" }}

$html = '<p> This is my Home Page.</p><p><span style="line-height: 1.42857;">{{ type="slider" }} {{ type="banner" }} {{ type="testimonial" }}  </span></p><p> </p>';

and try to get the values within my string {{ type=" ???? " }} it shows weird result

I am using this below code .

preg_match_all('/{{ type=\"(.+)\" }}/', $html, $matches, PREG_SET_ORDER);
echo "<pre>";
print_r($matches);
foreach ($matches as $val) {
    echo "matched: ". $val[0] . "<br/>";
    echo "My Value" . $val[1] . "<br/>"; 
}

Current Result :

Array
(
    [0] => Array
        (
            [0] => {{ type="slider" }} {{ type="banner" }} {{ type="testimonial" }}
            [1] => slider" }} {{ type="banner" }} {{ type="testimonial
        )

)
matched: {{ type="slider" }} {{ type="banner" }} {{ type="testimonial" }}
My Value : slider" }} {{ type="banner" }} {{ type="testimonial

I am expecting result in array with the values written between {{ type=" and " }}

with {{ type="slider" }} only i am getting this result which is perfect.

Array
(
    [0] => Array
        (
            [0] => {{ type="slider" }}
            [1] => slider
        )

)
matched: {{ type="slider" }}
My Value : slider

Any idea ?

Sorry for my bad english.

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2条回答 默认 最新

  • doumi4676 2016-09-02 05:42
    关注

    You need to make your regex match non-greedy by adding either a ? :

    preg_match_all('/{{ type=\"(.+?)\" }}/', $html, $matches, PREG_SET_ORDER);
    

    or the U modifier:

    preg_match_all('/{{ type=\"(.+)\" }}/U', $html, $matches, PREG_SET_ORDER);
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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