Preg Replace 视频对象代码 - 仅适用于第一个实例

发布于 2024-10-19 20:42:38 字数 894 浏览 8 评论 0原文

任何人都可以帮助我解释为什么以下代码仅适用于目标代码中宽度/高度的第一个实例。我需要替换使用“height: xxx ; width : xxx”的样式，然后替换实际嵌入的高度=“xxx”和宽度=“xxx”

这是预替换：

$vid_object = preg_replace('~((width)\s?[=:]\s?[\'"]?)[0-9]+~i','${1}600',$vid_object);

$vid_object = preg_replace('~((height)\s?[=:]\s?[\'"]?)[0-9]+~i','${1}364',$vid_object);

这是视频输出：

<object style="height: 364px; width: 600px"><param name="movie" value="http://www.youtube.com/v/UF06-2Q0-G0?version=3"><param name="allowFullScreen" value="true"><param name="allowScriptAccess" value="always"><embed src="http://www.youtube.com/v/UF06-2Q0-G0?version=3" type="application/x-shockwave-flash" allowfullscreen="true" allowScriptAccess="always" width="640" height="390"></object>

我认为它有与代码“${1}600”的替换部分有关，或者结果仅限于第一个实例。

非常感谢任何帮助。当正则表达式不是我的专长时，浪费了太多时间。谢谢尼古拉斯

原文

Can anyone help me decipher why the following code only works on the first instance of width / height in an object code. I need to replace both the style which use "height: xxx ; width : xxx" and then also replace the actual embed's height = "xxx" and width = "xxx"

here's the preg replace:

$vid_object = preg_replace('~((width)\s?[=:]\s?[\'"]?)[0-9]+~i','${1}600',$vid_object);

$vid_object = preg_replace('~((height)\s?[=:]\s?[\'"]?)[0-9]+~i','${1}364',$vid_object);

here's the video output:

<object style="height: 364px; width: 600px"><param name="movie" value="http://www.youtube.com/v/UF06-2Q0-G0?version=3"><param name="allowFullScreen" value="true"><param name="allowScriptAccess" value="always"><embed src="http://www.youtube.com/v/UF06-2Q0-G0?version=3" type="application/x-shockwave-flash" allowfullscreen="true" allowScriptAccess="always" width="640" height="390"></object>

I think it has something to do with the replacement part of the code '${1}600' or that the results are limited to first instance.

Any help is greatly appreciated. Wasted too much time hunting when regex isn't my specialty.
Thanks
nicholas

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爱，才寂寞 2024-10-26 20:42:38

尝试一下

$vid_object=preg_replace('/(width[\s:=\'"]+)\d+/i','${1}600',$vid_object);
$vid_object=preg_replace('/(height[\s:=\'"]+)\d+/i','${1}364',$vid_object);

范围更广一些。

当我在你提供的代码上运行它时，我得到了

<object style="height: 364px; width: 600px"><param name="movie" value="http://www.youtube.com/v/UF06-2Q0-G0?version=3"><param name="allowFullScreen" value="true"><param name="allowScriptAccess" value="always"><embed src="http://www.youtube.com/v/UF06-2Q0-G0?version=3" type="application/x-shockwave-flash" allowfullscreen="true" allowScriptAccess="always" width="600" height="364"></object>

try

$vid_object=preg_replace('/(width[\s:=\'"]+)\d+/i','${1}600',$vid_object);
$vid_object=preg_replace('/(height[\s:=\'"]+)\d+/i','${1}364',$vid_object);

It's a little broader.

When I run that on the code you provided I get

<object style="height: 364px; width: 600px"><param name="movie" value="http://www.youtube.com/v/UF06-2Q0-G0?version=3"><param name="allowFullScreen" value="true"><param name="allowScriptAccess" value="always"><embed src="http://www.youtube.com/v/UF06-2Q0-G0?version=3" type="application/x-shockwave-flash" allowfullscreen="true" allowScriptAccess="always" width="600" height="364"></object>

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