masyarakat Belajar Perpustakaan Alatan Masa lapang
cari
Melayu
Rumah > php教程 > php手册 > 解析PHP中反馈表单的具体实现办法

解析PHP中反馈表单的具体实现办法

WBOY
Lepaskan： 2016-06-13 11:06:39
asal
1375 orang telah melayarinya

一个网站经常会出现用户注册的填写表单之类的功能。我们可以通过PHP中获取表单数据是很简单的。当一个表单被发送后，表单中所包含的各个元素被赋上了相应的值，而这样就可以像引用一般变量一样使用了。 

<ol class="dp-xml">
<li class="alt"><span><strong><font color="#006699"><span class="tag"><span class="tag-name">FORM</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">name</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"myform"</font></span><span> </span><span class="attribute"><font color="#ff0000">ACTION</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"process_form.php3"</font></span><span> </span><span class="attribute"><font color="#ff0000">METHOD</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"POST"</font></span><span class="tag"><strong><font color="#006699">></font></strong></span><span>   </span></span></li>
<li class="">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">INPUT</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">TYPE</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"TEXT"</font></span><span> </span><span class="attribute"><font color="#ff0000">NAME</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"mytext"</font></span><span> </span><span class="attribute"><font color="#ff0000">VALUE</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"Some Value"</font></span><span class="tag"><strong><font color="#006699">></font></strong></span><span>   </span>
</li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">FORM</span><span class="tag">></span></font></strong><span> </span>
</li>
</ol>
Salin selepas log masuk

在process_form.php3中，变量$mytext就被赋予了输入的值--非常简单！同样的，你可以从列表框、多选框、单选框、按钮等表单元素中取得变量值。你唯一要做的就是为表单中的每一个元素取名以便将来可以引用。

根据这个PHP中反馈表单的方法，我们可以生成一个简单的包含三个元素的表单：姓名、e-mail地址和留言。当浏览者发送表单后，处理该表单的PHP页面（sendfdbk.php3）读取数据，检查姓名是否为空，最后将数据mail给你。

表单：form.php3 

<ol class="dp-xml">
<li class="alt"><span><span class="tag"><strong><font color="#006699"></font></strong></span><span>   </span></span></li>
<li class="">
<span></span><span class="tag-name"><strong><font color="#006699">include</font></strong></span><span>("include/common.inc");   </span>
</li>
<li class="alt">
<span>$</span><span class="attribute"><font color="#ff0000">title</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">"Feedback"</font></span><span>;   </span>
</li>
<li class=""><span>include("include/header.inc");   </span></li>
<li class="alt">
<span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span>   </span>
</li>
<li class="">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">P</span><span class="tag">></span></span></font></strong><span>   </span>
</li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">FORM</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">ACTION</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"sendfdbk.php3"</font></span><span> </span><span class="attribute"><font color="#ff0000">METHOD</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"POST"</font></span><span class="tag"><strong><font color="#006699">></font></strong></span><span>   </span>
</li>
<li class="">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">INPUT</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">TYPE</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"text"</font></span><span> </span><span class="attribute"><font color="#ff0000">NAME</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"name"</font></span><span> </span><span class="attribute"><font color="#ff0000">value</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"Your name"</font></span><span> </span><span class="attribute"><font color="#ff0000">SIZE</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"20"</font></span><span> </span><span class="attribute"><font color="#ff0000">MAXLENGTH</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"30"</font></span><span class="tag"><strong><font color="#006699">></font></strong></span><span>   </span>
</li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">INPUT</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">TYPE</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"text"</font></span><span> </span><span class="attribute"><font color="#ff0000">MAXLENGTH</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"40"</font></span><span> </span><span class="attribute"><font color="#ff0000">WIDTH</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"20"</font></span><span> </span><span class="attribute"><font color="#ff0000">value</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"Your Email"</font></span><span> </span><span class="attribute"><font color="#ff0000">NAME</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"email"</font></span><span class="tag"><strong><font color="#006699">></font></strong></span><span>   </span>
</li>
<li class="">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">BR</span><span class="tag">></span></span></font></strong><span>   </span>
</li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">TEXTAREA</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">ROWS</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"7"</font></span><span> </span><span class="attribute"><font color="#ff0000">COLS</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"40"</font></span><span> </span><span class="attribute"><font color="#ff0000">NAME</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"comment"</font></span><span class="tag"><strong><font color="#006699">></font></strong></span><span>   </span>
</li>
<li class=""><span>Your feedback on my home page.   </span></li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">TEXTAREA</span><span class="tag">></span></font></strong><span>   </span>
</li>
<li class="">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">BR</span><span class="tag">></span></span></font></strong><span>   </span>
</li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">INPUT</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">TYPE</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"submit"</font></span><span> </span><span class="attribute"><font color="#ff0000">VALUE</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"Send Feedback!"</font></span><span class="tag"><strong><font color="#006699">></font></strong></span><span>   </span>
</li>
<li class="">
<span></span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">FORM</span><span class="tag">></span></font></strong><span>   </span>
</li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">P</span><span class="tag">></span></font></strong><span>   </span>
</li>
<li class="">
<span></span><span class="tag"><strong><font color="#006699"></font></strong></span><span>   </span>
</li>
<li class="alt">
<span></span><span class="tag-name"><strong><font color="#006699">include</font></strong></span><span>("include/footer.inc");   </span>
</li>
<li class="">
<span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span>   </span>
</li>
</ol>
Salin selepas log masuk

PHP中反馈表单之处理表单：sendfdbk.php3 

<ol class="dp-xml">
<li class="alt"><span><span class="tag"><strong><font color="#006699"></font></strong></span><span>   </span></span></li>
<li class="">
<span></span><span class="tag-name"><strong><font color="#006699">include</font></strong></span><span>("include/common.inc");   </span>
</li>
<li class="alt">
<span>$</span><span class="attribute"><font color="#ff0000">title</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">"Feedback"</font></span><span>;   </span>
</li>
<li class=""><span>include("include/header.inc");   </span></li>
<li class="alt">
<span>if ( $</span><span class="attribute"><font color="#ff0000">name</font></span><span> == "" )   </span>
</li>
<li class=""><span>{   </span></li>
<li class="alt"><span>// 现在我很讨厌匿名的留言！   </span></li>
<li class=""><span>echo "Duh ? How come you are anonymous?";   </span></li>
<li class="alt"><span>}   </span></li>
<li class="">
<span>elseif ($</span><span class="attribute"><font color="#ff0000">name</font></span><span> == "Your name")   </span>
</li>
<li class="alt"><span>{   </span></li>
<li class=""><span>// 这个浏览者真是不想透露姓名啊！   </span></li>
<li class="alt">
<span>echo "Hello ? </span><strong><font color="#006699"><span class="tag"><span class="tag-name">B</span><span class="tag">></span></span></font></strong><span>Your name</span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">B</span><span class="tag">></span></font></strong><span> is supposed to be replaced with   </span>
</li>
<li class="">
<span>your actual name!</span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">B</span><span class="tag">></span></font></strong><span>";   </span>
</li>
<li class="alt"><span>}   </span></li>
<li class=""><span>else   </span></li>
<li class="alt"><span>{   </span></li>
<li class=""><span>// 输出一段礼貌的感谢语   </span></li>
<li class="alt"><span>echo "   </span></li>
<li class=""><span>Hello, $name.   </span></li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">BR</span><span class="tag">></span></span></font></strong><span>   </span>
</li>
<li class=""><span>Thank you for your feedback. It is greatly appreciated.   </span></li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">BR</span><span class="tag">></span></span></font></strong><span>   </span>
</li>
<li class=""><span>Thanking you   </span></li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">BR</span><span class="tag">></span></span></font></strong><span>   </span>
</li>
<li class="">
<span>$MyName </span><strong><font color="#006699"><span class="tag"><span class="tag-name">BR</span><span class="tag">></span></span></font></strong><span>   </span>
</li>
<li class="alt"><span>$MyEmailLink   </span></li>
<li class=""><span>";   </span></li>
<li class="alt"><span>// 最后mail出去   </span></li>
<li class=""><span>mail($MyEmail, "Feedback.","   </span></li>
<li class="alt"><span>Name : $name   </span></li>
<li class=""><span>E-mail : $email   </span></li>
<li class="alt"><span>Comment : $comment   </span></li>
<li class=""><span>");   </span></li>
<li class="alt"><span>}   </span></li>
<li class=""><span>include("include/footer.inc");   </span></li>
<li class="alt">
<span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span>   </span>
</li>
</ol>
Salin selepas log masuk

上面这段代码就是PHP中反馈表单的全部实现方式。


Label berkaitan：
php 。 khusus Muncul cara Fungsi maklum balas isi capai Pendaftaran pengguna daripada laman web bentuk menghuraikan
sumber：php.cn
Artikel sebelumnya：PHP函数sizeof()的具体使用语法详解 Artikel seterusnya：如何运用PHP函数count()求出数组的长度
Kenyataan Laman Web ini
Kandungan artikel ini disumbangkan secara sukarela oleh netizen, dan hak cipta adalah milik pengarang asal. Laman web ini tidak memikul tanggungjawab undang-undang yang sepadan. Jika anda menemui sebarang kandungan yang disyaki plagiarisme atau pelanggaran, sila hubungi admin@php.cn
Artikel terbaru oleh pengarang
Isu terkini
Gerakkan kandungan ke kiri dengan menambahkan sifat Width Saya telah memberikan margin kepada badan. utama {margin kiri: 200px; jidar kanan: 200px p...
daripada 2024-04-06 22:01:35
0
3
816
Bagaimana untuk menyelesaikan ruang kosong misteri di bahagian bawah halaman dalam CSS Saya cuba membina halaman web mudah menggunakan Bootstrap dan D3, tetapi saya tidak tahu b...
daripada 2024-04-06 20:22:15
0
1
454
Kira jumlah medan dalam jadual lain menggunakan pertanyaan MySQL SQL Saya mempunyai skema seperti ini: Jadual pengguna dengan atribut "user_id" dan &...
daripada 2024-04-06 19:39:29
0
1
441
Bagaimana untuk mendapatkan nama pertama daripada lajur nama_pelanggan selectsubstring(custommer_name,1,instr(custmer_name,''))asfirst_namefromsales.penyelesaian...
daripada 2024-04-06 17:43:30
0
2
433
Hasilkan nilai lalai dan pembolehubah CSS menggunakan SCSS Saya sedang melaksanakan penggayaan laman web. Atas sebab sokongan warisan, saya perlu men...
daripada 2024-04-06 17:46:54
0
1
355
Topik-topik yang berkaitan
Lagi>
Cadangan popular
Tutorial Popular
Lagi>
Tutorial berkaitan
Cadangan popular
Kursus terkini
Muat turun terkini
Lagi>
kesan web
Kod sumber laman web
Bahan laman web
Templat hujung hadapan