如何在空字体标记中插入字符串?

mar*_*t15 1 php

如何在空字体标签中添加字符串?就像在第二个字体标记中没有值一样,我只会插入一个<br />标记.我怎样才能做到这一点?

我有这个HTML代码:

<P ALIGN="LEFT">
    <FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0">
        Welcome to jQuery Course
    </FONT>
</P>
<P ALIGN="LEFT">
    <FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0">
    </FONT>
</P>
<P ALIGN="LEFT">
    <FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0">
        This is the jQuery Introduction content.
    </FONT>
</P>
Run Code Online (Sandbox Code Playgroud)

我喜欢输出:

<P ALIGN="LEFT">
        <FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0">
            Welcome to jQuery Course
        </FONT>
    </P>
    <P ALIGN="LEFT">
        <FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0">
            <br />
        </FONT>
    </P>
    <P ALIGN="LEFT">
        <FONT FACE="Verdana" style="font-size:10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0">
            This is the jQuery Introduction content.
        </FONT>
    </P>
Run Code Online (Sandbox Code Playgroud)

Ant*_*thy 5

您不应该使用字体标记.

您可以

str_replace("></FONT>", ">$myinserttext</FONT>", $myhtml);
Run Code Online (Sandbox Code Playgroud)

用PHP或

$("font:empty").html("Sample Content");
Run Code Online (Sandbox Code Playgroud)

在jQuery中.