大家好，本人初学php，关于html和php代码嵌入有点不明白，
举个例子：
<strong>）本文来（源gaodai#ma#com搞@@代~&码*网2</strong><pre>搞代gaodaima码
<?php if ( $missingFields ) { ?>
There were some problems with the form you submitted.Please complete the fields highlighted below and click Send Details to resend the form.
<?php } else { ?>
Thanks for choosing to join The Widget Club. To register, please fillin your details below and click Send Details. Fields marked with an asterisk(*) are required.
<?php } ?>
为什么这里遇到“}”就把它单独放置在<?php ?>中。为什么不能写成这样？
<code><?php if ( $missingFields ) { <p class="”error”">There were some problems with the form you submitted.Please complete the fields highlighted below and click Send Details to resend the form.</p> } else { <p>Thanks for choosing to join The Widget Club. To register, please fillin your details below and click Send Details. Fields marked with an asterisk(*) are required.</p> } </code>
非常感谢，解疑答惑！
回复内容：
大家好，本人初学php，关于html和php代码嵌入有点不明白，
举个例子：
<code><?php if ( $missingFields ) { ?><p class="”error”">There were some problems with the form you submitted.Please complete the fields highlighted below and click Send Details to resend the form.</p><?php } else { ?><p>Thanks for choosing to join The Widget Club. To register, please fillin your details below and click Send Details. Fields marked with an asterisk(*) are required.</p><?php } ?></code>
为什么这里遇到“}”就把它单独放置在<?php ?>中。为什么不能写成这样？
<code><?php if ( $missingFields ) { <p class="”error”">There were some problems with the form you submitted.Please complete the fields highlighted below and click Send Details to resend the form.</p> } else { <p>Thanks for choosing to join The Widget Club. To register, please fillin your details below and click Send Details. Fields marked with an asterisk(*) are required.</p> } </code>
非常感谢，解疑答惑！
因为
标签属于html而不是php语言，所以不能加到php起止符号内
<?php 这里面的内容表示为php ?>
表示他为php的 代码块结束符号“}”
因为
<code><p class="”error”">There were some problems with the form you submitted.Please complete the fields highlighted below and click Send Details to resend the form.</p></code>
不是合法的PHP代码．
-
在<?php ?>中的是php代码，第二种写法，很明显标签
中的内容不是php代码。
-
如果想要用第二种写法，可以这样写：
<code><?php if ( $missingFields ) { echo '<p> ... </p>'; } else { echo '<p> ... </p>'; } ?></code>
所有的非html代码都要嵌入在<?php ?>内，而所有在<?php ?>里面的都会被解析为php代码，按照你的想法，那一对
标签里的内容不属于php代码，所以应该是这样分段嵌入的：
<code><?php if ( $missingFields ) { ?>xxx<?php } else { ?>xxx<?php } ?></code>
7048
其实应该这样理解
在php里， ?> 表示开始输出html，<?php 则是结束符，把它当成一个多行的echo就好理解了，这也是为什么现在推荐不写最后一个?>
可以这样：
<code><?php if ( $missingFields ): ?> <p class="error">There were some problems with the ....</p><?php else: ?> <p>Thanks for choosing to join The Widget Club....</p><?php endif; ?></code>
语言PHP的语法起始标签就是 <?php ?> PHP的语言决定必须这么写!!!
转载请注明原文链接：web后端 – 关于php中嵌入html代码时结束符“？>”位置为什么这样放置？
