深入探讨PHP下拉框选择的实现方法_PHP教程

<ol class="dp-xml">
<li class="alt"><span><span class="tag"><span> </span><span class="tag-name">input</span><span> </span><span class="attribute">type</span><span>=</span><span class="attribute-value">"button"</span><span> </span><span class="attribute">value</span><span>=</span><span class="attribute-value">"delete"</span><span> </span><span class="attribute">onclick</span><span>=</span><span class="attribute-value">"<br>if(confirm('确定要删除吗')) location.href=<br>'del_03.php?id=xing'"</span><span class="tag">></span><span class="tag"><span> </span><span class="tag-name">br</span><span class="tag">/></span><span> </span></span></span></span></li>
<li><span class="tag"><span> </span><span class="tag-name">script</span><span> </span><span class="attribute">language</span><span>=</span><span class="attribute-value">"JavaScript"</span><span> </span><span class="attribute">type</span><span>=</span><span class="attribute-value">"text/javascript"</span><span class="tag">></span><span> </span></span></li>
<li class="alt"><span>function select(obj){  </span></li>
<li>
<span class="attribute">window.location.href</span><span>=</span><span class="attribute-value">'del_04.php?myselect=<br>'</span><span>+obj.options[obj.selectedIndex].value;  </span>
</li>
<li class="alt"><span>return; //可以不写;  </span></li>
<li><span>}  </span></li>
<li class="alt"><span class="tag"><span> /script</span><span class="tag">></span><span> </span></span></li>
<li><span class="tag"><span> </span><span class="tag-name">input</span><span> </span><span class="attribute">type</span><span>=</span><span class="attribute-value">"button"</span><span> </span><span class="attribute">value</span><span>=</span><span class="attribute-value">"delete"</span><span> <br></span><span class="attribute">onclick</span><span>=</span><span class="attribute-value">"if(confirm('确定要删除吗')) <br>location.href='del_03.php?id=xing'"</span><span class="tag">></span><span class="tag"><span> </span><span class="tag-name">br</span><span class="tag">/></span><span> </span></span></span></li>
<li class="alt"><span class="tag"><span> </span><span class="tag-name">form</span><span> </span><span class="attribute">name</span><span>=</span><span class="attribute-value">"myform"</span><span> </span><span class="attribute">action</span><span>=</span><span class="attribute-value">"del_04.php"</span><span> <br></span><span class="attribute">method</span><span>=</span><span class="attribute-value">"post"</span><span class="tag">></span><span> </span></span></li>
<li><span class="tag"><span> !-- 直接触发onchange 事件 ,此时不用提交表单,-- </span><span class="tag">></span><span> </span></span></li>
<li class="alt"><span class="tag"><span> !--</span><span class="tag"><span> </span><span class="tag-name">select</span><span> </span><span class="attribute">name</span><span>=</span><span class="attribute-value">"selectID"</span><span> </span><span class="attribute">onchange</span><span>=<br></span><span class="attribute-value">"location='del_04.php?myselect='+this.options<br>[this.selectedIndex].value"</span><span class="tag">></span><span>--</span><span class="tag">></span><span> </span></span></span></li>
<li><span class="tag"><span> !-- 把onchange 的事件写在一个函数里面-- </span><span class="tag">></span><span> </span></span></li>
<li class="alt"><span class="tag"><span> </span><span class="tag-name">select</span><span> </span><span class="attribute">name</span><span>=</span><span class="attribute-value">"selectID"</span><span> </span><span class="attribute">onchange</span><span>=</span><span class="attribute-value">"select(this)"</span><span class="tag">></span><span> </span></span></li>
<li><span class="tag"><span> !-- </span><span class="tag"><span> </span><span class="tag-name">select</span><span> </span><span class="attribute">name</span><span>=</span><span class="attribute-value">"selectID"</span><span> </span><span class="tag">></span><span>--</span><span class="tag">></span><span> </span></span></span></li>
<li class="alt"><span class="tag"><span> </span><span class="tag-name">option</span><span> </span><span class="attribute">value</span><span>=</span><span class="attribute-value">"0"</span><span class="tag">></span><span>请选择</span><span class="tag"><span> /option</span><span class="tag">></span><span> </span></span></span></li>
<li><span class="tag"><span> </span><span class="tag-name">option</span><span> </span><span class="attribute">value</span><span>=</span><span class="attribute-value">"value1"</span><span class="tag">></span><span>option1</span><span class="tag"><span> /option</span><span class="tag">></span><span> </span></span></span></li>
<li class="alt"><span class="tag"><span> </span><span class="tag-name">option</span><span> </span><span class="attribute">value</span><span>=</span><span class="attribute-value">"value2"</span><span class="tag">></span><span>option2</span><span class="tag"><span> /option</span><span class="tag">></span><span> </span></span></span></li>
<li><span class="tag"><span> </span><span class="tag-name">option</span><span> </span><span class="attribute">value</span><span>=</span><span class="attribute-value">"value3"</span><span class="tag">></span><span>option3</span><span class="tag"><span> /option</span><span class="tag">></span><span> </span></span></span></li>
<li class="alt"><span class="tag"><span> /select</span><span class="tag">></span><span> </span></span></li>
<li><span class="tag"><span> </span><span class="tag-name">input</span><span> </span><span class="attribute">type</span><span>=</span><span class="attribute-value">"submit"</span><span> </span><span class="attribute">name</span><span>=</span><span class="attribute-value">"sendSelect"</span><span> <br></span><span class="attribute">value</span><span>=</span><span class="attribute-value">"提交下拉框"</span><span class="tag">/></span><span> </span></span></li>
<li class="alt"><span class="tag"><span> /form</span><span class="tag">></span><span> </span></span></li>
</ol>