PHP动态网站开发的技巧分享

许多程序员都在使用1、命名

1. input 
2. type='checkbox' 
3. name='checkbox[]' 
4. value=$dwmyrow[banzhu] 
5. /> 

2、使用

当计划当作sql指令的一部分时：如果参与控制的字段是数值型的，则

<ol class="dp-xml">
<li class="alt"><span><span>if(! empty($_POST['checkbox'])) </span></span></li>
<li class="alt"><span><span>{  </span></span></li>
<li>
<span>$</span><span class="attribute">expr</span><span> = </span><span class="attribute-value">join</span><span>(",", $_POST['checkbox']);  </span>
</li>
<li class="alt">
<span>$</span><span class="attribute">sql</span><span> = </span><span class="attribute-value">"select * from tbl_name where <br>field in ($expr)"</span><span>;  </span>
</li>
<li><span>}  </span></li>
</ol>

如果PHP动态网站开发说参与控制的字段是数值型的，则

<ol class="dp-xml">
<li class="alt"><span><span>if(! empty($_POST['checkbox'])) </span></span></li>
<li class="alt"><span><span>{  </span></span></li>
<li>
<span>$</span><span class="attribute">expr</span><span> = </span><span class="attribute-value">"'"</span><span>.join("','", $_POST<br>['checkbox']).".";  </span>
</li>
<li class="alt">
<span>$</span><span class="attribute">sql</span><span> = </span><span class="attribute-value">"select * from tbl_name <br>where field in ($expr)"</span><span>;  </span>
</li>
<li><span>}  </span></li>
</ol>

PHP判断Form表单是否提交

<ol class="dp-xml">
<li class="alt"><span><span>$</span><span class="attribute">action</span><span>=$HTTP_POST_VARS["Button1"];  </span></span></li>
<li>
<span>if($</span><span class="attribute">action</span><span>=="提交")  </span>
</li>
<li class="alt"><span>{  </span></li>
<li><span>//执行表单操作  </span></li>
<li class="alt"><span>}  </span></li>
<li><span>else  </span></li>
<li class="alt"><span> {  </span></li>
<li><span>//读取默认值  </span></li>
<li class="alt"><span>}  </span></li>
</ol>

PHP动态网站开发中PHP 获取字符串长度

<ol class="dp-xml"><li class="alt"><span><span>strlen($myrow[1])  </span></span></li></ol>

PHP Url转向

<ol class="dp-xml"><li class="alt"><span><span>Header("Location: ".<br>$_SERVER["HTTP_REFERER"]);  </span></span></li></ol>

PHP动态网站开发中的超全局对象

<ol class="dp-xml">
<li class="alt"><span><span class="tag"><span class="tag-name">php</span><span> </span></span></span></li>
<li>
<span>$</span><span class="attribute">a</span><span> = </span><span class="attribute-value">1</span><span>;  </span>
</li>
<li class="alt">
<span>$</span><span class="attribute">b</span><span> = </span><span class="attribute-value">2</span><span>;  </span>
</li>
<li><span>function Sum()  </span></li>
<li class="alt"><span>{  </span></li>
<li><span>　$GLOBALS["b"] = <br>$GLOBALS["a"] + $GLOBALS["b"];  </span></li>
<li class="alt"><span>}  </span></li>
<li><span>Sum();  </span></li>
<li class="alt"><span>echo $b;  </span></li>
<li>
<span></span><span class="tag">?></span><span> </span>
</li>
</ol>

PHP 表单取值

　如果 method="get" 就用 $_GET["test"] 代替$test
　如果 method="post" 就用 $_POST["test"] 代替$test

PHP动态网站开发时取得当前IP

<ol class="dp-xml">
<li class="alt"><span><span class="tag"></span></span></li>
<li class="alt"><span><span>=$HTTP_SERVER_VARS["REMOTE_ADDR"]</span></span></li>
<li class="alt"><span><span class="tag">?></span><span> </span></span></li>
</ol>

PHP 取得当前时间

<ol class="dp-xml">
<li class="alt"><span><span class="tag"></span><span class="tag-name">php</span><span> </span></span></li>
<li><span>　echo date("Y-m-d G:i:s");  </span></li>
<li class="alt">
<span></span><span class="tag">?></span><span> </span>
</li>
<li><span>　date("Y年m月d日")  </span></li>
<li class="alt"><span>　Date ("Y-n-j")  </span></li>
</ol>

以上就是PHP动态网站开发的具体技巧讲解。