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Background return data echo, use JS control default check box and drop-down box

Source: Internet
Author: User
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<! DOCTYPE html><Htmllang="ZH-CN" ><Head><Metacharset="UTF-8" ><Title> Test</Title><?php $chk =Array' Ch1 ',' CH3 ',' Ch5 ');Get an array of checkbox-checked IDs in the background $slt =' Iph ';Background gets the value of select option?><ScriptType="Text/javascript"Src="//upcdn.b0.upaiyun.com/libs/jquery/jquery-1.8.3.min.js" ></Script><ScriptType="Text/javascript" >$(function(){var chkdata = <?php echo json_encode ($CHK);? >;var sltdata =' <?php echo $slt;? > '; $('. Chk '). each (function(){var self = $ (this);var Selfid = self.attr (' id '); $.each (Chkdata,function(N, v) {if (v = = Selfid) self.attr (' Checked ',' true '); }); }); $(' #select option '). each (function(){var self = $ (this);var selfval = Self.val ();if (Selfval = = Sltdata) self.attr (' Selected ',' true '); });});</Script></Head><Body><P><InputId="Ch1"class="Chk"Type="checkbox"Value="111" >111</P><P><InputId="CH2"class="Chk"Type="checkbox"Value="222" >222</P><P><InputId="CH3"class="Chk"Type="checkbox"Value="333" >333</P><P><InputId="CH4"class="Chk"Type="checkbox"Value="444" >444</P><P><InputId="Ch5"class="Chk"Type="checkbox"Value="555" >555</P><Divclass="Selectaera" ><SelectId="Select" ><OptionValue="SMT" > Hammer</Option><option value=  "iph" > Apple </option> <option value= "XM" > Xiaomi </option> < option value= "Nka" > Nokia </option> </select > </div></ body></HTML>

Return data back in the background, use the JS control to select the check box and drop-down box by default

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