douxie7738 2012-03-23 15:43 采纳率: 0%
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PHP正则表达式用括号括起字符串之前的数字

Trying to grab the numbers in front of (h), (w) and (d). These are dynamic and I can't get the syntax for it:

    <ul>
      <li>Make: Mymake</li>
      <li>Model: R-22GTF</li>
      <li>Dimensions: 13.25&#34; (h) x 20.13&#34; (w) x 18.5&#34; (d)</li>
      <li>Sold Individually </li>
      <li>Weight: 0 lbs.</li>
    </ul>

if (preg_match("/Dimensions: ((?:\d+)(?:\.\d*)?)/", $desc, $DIMS) == true)
    { echo $DIMS[1];}

The above only returns 13.25. I would like each in its own array or own variable. Each as defined by the number before (h), the number before (w), and the number before (d).

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  • doulan8330 2012-03-23 16:02
    关注
    <?php
    
    $input = "    
         <ul>
          <li>Make: Mymake</li>
          <li>Model: R-22GTF</li>
          <li>Dimensions: 13.25&#34; (h) x 20.13&#34; (w) x 18.5&#34; (d)</li>
          <li>Sold Individually </li>
          <li>Weight: 0 lbs.</li>
        </ul>";
    
    $re = '/.* (\d+\.\d+).*\(h\) .* (\d+\.\d+).*\(w\) .* (\d+\.\d+).*\(d\)/';
    if(preg_match($re, $input, $matches))
       echo sprintf("H: %s   W: %s   D: %s
    ", $matches[1], $matches[2], $matches[3]);
    ?>
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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