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php下拉框二级菜单如何实现
首先，这种效果是html的select标签实现的，其实PHP要做的就是将数据按照一定的格式组织好，然后按照一定的规则输出即可。
下面是大致的示例代码。
// 首先根据你现有的数据对其按照一定的格式组织
$brands = array(
'东风本田' = array('艾力绅','本田CR-V',...),
'广汽本田' = array(...),
...
);
// 输出HTML标签
echo 'select name="brands" size="1"';
echo 'option value=""请选择车系/option';
foreach ($brands as $brand = $items) {
echo 'optgroup label="',$brand,'"';
foreach ($items as $item) {
echo 'option value="',$item,'"',$item,'/option';
}
echo '/optgroup';
}
echo '/select';
联动下拉列表 php
09年全国最新重新规划省市县三级联动菜单,非常好用，还带邮编。
不过字数太多，这里不让贴，你到这个网页上自己看
select id="province" onchange="setCity(this.value);getArea()" name="province"
option value="" selected="selected"请选择/option
/select
select id="city" onchange="setCounty(this.value);getArea()" name="city" style="display:;"
option value="" selected="selected"请选择/option
/select
select id="county" name="county" onchange="getArea()" style="display:;"
option value="" selected="selected"请选择/option
/select
input type="text" name="area" id="area" value="222426" onchange="setArea();"/
input type="button" value="转" onclick="setArea();" /
script type="text/javascript"
var areaData = "110000|北京市,110100|市辖区,110101|东城区,110102|西城区,110103|崇文区,110104|宣武区,110105|朝阳区,110106|丰台区,110107|石景山区,110108|海淀区,110109|门头沟区,110111|房山区,110112|通州区,110113|顺义区,110114|昌平区,110115|大兴区,110116|怀柔区,110117|平谷区,110200|县,110228|密云县,110229|延庆县,120000|天津市,120100|市辖区,120101|和平区,120102|河东区,120103|河西区,120104|南开区,120105|河北区,120106|红桥区,120107|塘沽区,120108|汉沽区,120109|大港区,120110|东丽区,120111|西青区,120112|津南区,120113|北辰区,120114|武清区,120115|宝坻区,120200|县,120221|宁河县,120223|静海县,120225|蓟县,130000|河北省,130100|石家庄市,130101|市辖区,130102|长安区,130103|桥东区,130104|桥西区,130105|新华区,130107|井陉矿区,130108|裕华区,130121|井陉县,130123|正定县,130124|栾城县,130125|行唐县,130126|灵寿县,130127|高邑县,130128|深泽县,130129|赞皇县,130130|无极县,130131|平山县,130132|元氏县,130133|赵县,130181|辛集市,130182|藁城市,130183|晋州市,130184|新乐市,130185|鹿泉市,130200|唐山市,130201|市辖区,130202|路南区,130203|路北区,130204|古冶区,130205|开平区,130207|丰南区,130208|丰润区,130223|滦县,130224|滦南县,130225|乐亭县,130227|迁西县,130229|玉田县,130230|唐海县,130281|遵化市,130283|迁安市,130300|秦皇岛市,130301|市辖区,130302|海港区,130303|山海关区,130304|北戴河区,130321|青龙满族自治县,130322|昌黎县,130323|抚宁县,130324|卢龙县,130400|邯郸市,130401|市辖区,130402|邯山区,130403|丛台区,130404|复兴区,130406|峰峰矿区,130421|邯郸县,130423|临漳县,130424|成安县,130425|大名县,130426|涉县,130427|磁县,130428|肥乡县,130429|永年县,130430|邱县,130431|鸡泽县,130432|广平县,130433|馆陶县,130434|魏县,130435|曲周县,130481|武安市,130500|邢台市,130501|市辖区,130502|桥东区,130503|桥西区,130521|邢台县,130522|临城县,130523|内丘县,130524|柏乡县,130525|隆尧县,130526|任县,130527|南和县,130528|宁晋县,130529|巨鹿县,130530|新河县,130531|广宗县,130532|平乡县,130533|威县,130534|清河县,130535|临西县,130581|南宫市,130582|沙河市,130600|保定市,130601|市辖区,130602|新市区,130603|北市区,130604|南市区,130621|满城县,130622|清苑县,130623|涞水县,130624|阜平县,130625|徐水县,130626|定兴县,130627|唐县,130628|高阳县,130629|容城县,130630|涞源县,130631|望都县,130632|安新县,130633|易县,130634|曲阳县,130635|蠡县,130636|顺平县,130637|博野县,130638|雄县,130681|涿州市,130682|定州市,130683|安国市,130684|高碑店市,130700|张家口市,130701|市辖区,130702|桥东区,130703|桥西区,130705|宣化区,130706|下花园区,130721|宣化县,130722|张北县,130723|康保县,130724|沽源县,130725|尚义县,130726|蔚县,130727|阳原县,130728|怀安县,130729|万全县,130730|怀来县,130731|涿鹿县,130732|赤城县,130733|崇礼县,130800|承德市,130801|市辖区,130802|双桥区,130803|双滦区,130804|鹰手营子矿区,130821|承德县,130822|兴隆县,130823|平泉县,130824|滦平县,130825|隆化县,130826|丰宁满族自治县,130827|宽城满族自治县,130828|围场满族蒙古族自治县,130900|沧州市,130901|市辖区,130902|新华区,130903|运河区,130921|沧县,130922|青县,130923|东光县,130924|海兴县,130925|盐山县,130926|肃宁县,130927|南皮县,130928|吴桥县,130929|献县,130930|孟村回族自治县,130981|泊头市,130982|任丘市,130983|黄骅市,130984|河间市,131000|廊坊市,131001|市辖区,131002|安次区,131003|广阳区,131022|固安县,131023|永清县,131024|香河县,131025|大城县,131026|文安县,131028|大厂回族自治县,131081|霸州市,131082|三河市,131100|衡水市,131101|市辖区,131102|桃城区,131121|枣强县,131122|武邑县,131123|武强县,131124|饶阳县,131125|安平县,131126|故城县,131127|景县,131128|阜城县,131181|冀州市,131182|深州市,140000|山西省,140100|太原市,140101|市辖区,140105|小店区,140106|迎泽区,140107|杏花岭区,140108|尖草坪区,140109|万柏林区,140110|晋源区,140121|清徐县,140122|阳曲县,140123|娄烦县,140181|古交市,140200|大同市,140201|市辖区,140202|城区,140203|矿区,140211|南郊区,140212|新荣区,140221|阳高县,140222|天镇县,140223|广灵县,140224|灵丘县,140225|浑源县,140226|左云县,140227|大同县,140300|阳泉市,140301|市辖区,140302|城区,140303|矿区,140311|郊区,140321|平定县,140322|盂县,140400|长治市,140401|市辖区,140402|城区,140411|郊区,140421|长治县,140423|襄垣县,140424|屯留县,140425|平顺县,140426|黎城县,140427|壶关县,140428|长子县,140429|武乡县,140430|沁县,140431|沁源县,140481|潞城市,140500|晋城市,140501|市辖区,140502|城区,140521|沁水县,140522|阳城县,140524|陵川县,140525|泽州县,140581|高平市,140600|朔州市,140601|市辖区,140602|朔城区,140603|平鲁区,140621|山阴县,140622|应县,140623|右玉县,140624|怀仁县,140700|晋中市,140701|市辖区,140702|榆次区,140721|榆社县,140722|左权县,140723|和顺县,140724|昔阳县,140725|寿阳县,140726|太谷县,140727|祁县,140728|平遥县,140729|灵石县,140781|介休市,140800|运城市,140801|市辖区,140802|盐湖区,140821|临猗县,140822|万荣县,140823|闻喜县,140824|稷山县,140825|新绛县,140826|绛县,140827|垣曲县,140828|夏县,140829|平陆县,140830|芮城县,140881|永济市,140882|河津市,140900|忻州市,140901|市辖区,140902|忻府区,140921|定襄县,140922|五台县,140923|代县,140924|繁峙县,140925|宁武县,140926|静乐县,140927|神池县,140928|五寨县,140929|岢岚县,140930|河曲县,140931|保德县,140932|偏关县,140981|原平市,141000|临汾市,141001|市辖区,141002|尧都区,141021|曲沃县,141022|翼城县,141023|襄汾县,141024|洪洞县,141025|古县,141026|安泽县,141027|浮山县,141028|吉县,141029|乡宁县,141030|大宁县,141031|隰县,141032|永和县,141033|蒲县,141034|汾西县,141081|侯马市,141082|霍州市,141100|吕梁市,141101|市辖区,141102|离石区,141121|文水县,141122|交城县,141123|兴县,141124|临县,141125|柳林县,141126|石楼县,141127|岚县,141128|方山县,141129|中阳县,141130|交口县,141181|孝义市,141182|汾阳市,150000|内蒙古自治区,150100|呼和浩特市,150101|市辖区,150102|新城区,150103|回民区,150104|玉泉区,150105|赛罕区,150121|土默特左旗,150122|托克托县,150123|和林格尔县,150124|清水河县,150125|武川县,150200|包头市,150201|市辖区,150202|东河区,150203|昆都仑区,150204|青山区,150205|石拐区,150206|白云矿区,150207|九原区,150221|土默特右旗,150222|固阳县,150223|达尔罕茂明安联合旗,150300|乌海市,150301|市辖区,150302|海勃湾区,150303|海南区,150304|乌达区,150400|赤峰市,150401|市辖区,150402|红山区,150403|元宝山区,150404|松山区,150421|阿鲁科尔沁旗,150422|巴林左旗,150423|巴林右旗,150424|林西县,150425|克什克腾旗,150426|翁牛特旗,150428|喀喇沁旗,150429|宁城县,150430|敖汉旗,150500|通辽市,150501|市辖区,150502|科尔沁区,150521|科尔沁左翼中旗,150522|科尔沁左翼后旗,150523|开鲁县,150524|库伦旗,150525|奈曼旗,150526|扎鲁特旗,150581|霍林郭勒市,150600|鄂尔多斯市,150601|市辖区,150602|东胜区,150621|达拉特旗,150622|准格尔旗,150623|鄂托克前旗,150624|鄂托克旗,150625|杭锦旗,150626|乌审旗,150627|伊金霍洛旗,150700|呼伦贝尔市,150701|市辖区,150702|海拉尔区,150721|阿荣旗,150722|莫力达瓦达斡尔族自治旗,150723|鄂伦春自治旗,150724|鄂温克族自治旗,150725|陈巴尔虎旗,150726|新巴尔虎左旗,150727|新巴尔虎右旗,150781|满洲里市,150782|牙克石市,150783|扎兰屯市,150784|额尔古纳市,150785|根河市,150800|巴彦淖尔市,150801|市辖区,150802|临河区,150821|五原县,150822|磴口县,150823|乌拉特前旗,150824|乌拉特中旗,150825|乌拉特后旗,150826|杭锦后旗,150900|乌兰察布市,150901|市辖区,150902|集宁区,150921|卓资县,150922|化德县,150923|商都县,150924|兴和县,150925|凉城县,150926|察哈尔右翼前旗,150927|察哈尔右翼中旗,150928|察哈尔右翼后旗,150929|四子王旗,150981|丰镇市,152200|兴安盟,152201|乌兰浩特市,152202|阿尔山市,152221|科尔沁右翼前旗,152222|科尔沁右翼中旗,152223|扎赉特旗,152224|突泉县,152500|锡林郭勒盟,152501|二连浩特市,152502|锡林浩特市,152522|阿巴嘎旗,152523|苏尼特左旗,152524|苏尼特右旗,152525|东乌珠穆沁旗,152526|西乌珠穆沁旗,152527|太仆寺旗,152528|镶黄旗,152529|正镶白旗,152530|正蓝旗,152531|多伦县,152900|阿拉善盟,152921|阿拉善左旗,152922|阿拉善右旗,152923|额济纳旗,210000|辽宁省,210100|沈阳市,210101|市辖区,210102|和平区,210103|沈河区,210104|大东区,210105|皇姑区,210106|铁西区,210111|苏家屯区,210112|东陵区,210113|沈北新区,210114|于洪区,210122|辽中县,210123|康平县,210124|法库县,210181|新民市,210200|大连市,210201|市辖区,210202|中山区,210203|西岗区,210204|沙河口区,210211|甘井子区,210212|旅顺口区,210213|金州区,210224|长海县,210281|瓦房店市,210282|普兰店市,210283|庄河市,210300|鞍山市,210301|市辖区,210302|铁东区,210303|铁西区,210304|立山区,210311|千山区,210321|台安县,210323|岫岩满族自治县,210381|海城市,210400|抚顺市,210401|市辖区,210402|新抚区,210403|东洲区,210404|望花区,210411|顺城区,210421|抚顺县,210422|新宾满族自治县,210423|清原满族自治县,210500|本溪市,210501|市辖区,210502|平山区,210503|溪湖区,210504|明山区,210505|南芬区,210521|本溪满族自治县,210522|桓仁满族自治县,210600|丹东市,210601|市辖区,210602|元宝区,210603|振兴区,210604|振安区,210624|宽甸满族自治县,210681|东港市,210682|凤城市,210700|锦州市,210701|市辖区,210702|古塔区,210703|凌河区,210711|太和区,210726|黑山县,210727|义县,210781|凌海市,210782|北镇市,210800|营口市,210801|市辖区,210802|站前区,210803|西市区,210804|鲅鱼圈区,210811|老边区,210881|盖州市,210882|大石桥市,210900|阜新市,210901|市辖区,210902|海州区,210903|新邱区,210904|太平区,210905|清河门区,210911|细河区,210921|阜新蒙古族自治县,210922|彰武县,211000|辽阳市,211001|市辖区,211002|白塔区,211003|文圣区,211004|宏伟区,211005|弓长岭区,211011|太子河区,211021|辽阳县,211081|灯塔市,211100|盘锦市,211101|市辖区,211102|双台子区,211103|兴隆台区,211121|大洼县,211122|盘山县,211200|铁岭市,211201|市辖区,211202|银州区,211204|清河区,211221|铁岭县,211223|西丰县,211224|昌图县,211281|调兵山市,211282|开原市,211300|朝阳市,211301|市辖区,211302|双塔区,211303|龙城区,211321|朝阳县,211322|建平县,211324|喀喇沁左翼蒙古族自治县,211381|北票市,211382|凌源市,211400|葫芦岛市,211401|市辖区,211402|连山区,211403|龙港区,211404|南票区,211421|绥中县,211422|建昌县,211481|兴城市,220000|吉林省,220100|长春市,220101|市辖区,220102|南关区,220103|宽城区,220104|朝阳区,220105|二道区,220106|绿园区,220112|双阳区,220122|农安县,220181|九台市,220182|榆树市,220183|德惠市,220200|吉林市,220201|市辖区,220202|昌邑区,220203|龙潭区,220204|船营区,220211|丰满区,220221|永吉县,220281|蛟河市,220282|桦甸市,220283|舒兰市,220284|磐石市,220300|四平市,220301|市辖区,220302|铁西区,220303|铁东区,220322|梨树县,220323|伊通满族自治县,220381|公主岭市,220382|双辽市,220400|辽源市,220401|市辖区,220402|龙山区,220403|西安区,220421|东丰县,220422|东辽县,220500|通化市,220501|市辖区,220502|东昌区,220503|二道江区,220521|通化县,220523|辉南县,220524|柳河县,220581|梅河口市,220582|集安市,220600|白山市,220601|市辖区,220602|八道江区,220605|江源区,220621|抚松县,220622|靖宇县,220623|长白朝鲜族自治县,220681|临江市,220700|松原市,220701|市辖区,220702|宁江区,220721|前郭尔罗斯蒙古族自治县,220722|长岭县,220723|乾安县,220724|扶余县,220800|白城市,220801|市辖区,220802|洮北区,220821|镇赉县,220822|通榆县,220881|洮南市,220882|大安市,222400|延边朝鲜族自治州,222401|延吉市,222402|图们市,222403|敦化市,222404|珲春市,222405|龙井市,222406|和龙市,222424|汪清县,222426|安图县,230000|黑龙江省,230100|哈尔滨市,230101|市辖区,230102|道里区,230103|南岗区,230104|道外区,230108|平房区,230109|松北区,230110|香坊区,230111|呼兰区,230112|阿城区,230123|依兰县,230124|方正县,230125|宾县,230126|巴彦县,230127|木兰县,230128|通河县,230129|延寿县,230182|双城市,230183|尚志市,230184|五常市,230200|齐齐哈尔市,230201|市辖区,230202|龙沙区,230203|建华区,230204|铁锋区,230205|昂昂溪区,230206|富拉尔基区,230207|碾子山区,230208|梅里斯达斡尔族区,230221|龙江县,230223|依安县,230224|泰来县,230225|甘南县,230227|富裕县,230229|克山县,230230|克东县,230231|拜泉县,230281|讷河市,230300|鸡西市,230301|市辖区,230302|鸡冠区,230303|恒山区,230304|滴道区,230305|梨树区,230306|城子河区,230307|麻山区,230321|鸡东县,230381|虎林市,230382|密山市,230400|鹤岗市,230401|市辖区,230402|向阳区,230403|工农区,230404|南山区,230405|兴安区,230406|东山区,230407|兴山区,230421|萝北县,230422|绥滨县,230500|双鸭山市,230501|市辖区,230502|尖山区,230503|岭东区,230505|四方台区,230506|宝山区,230521|集贤县,230522|友谊县,230523|宝清县,230524|饶河县,230600|大庆市,230601|市辖区,230602|萨尔图区,230603|龙凤区,230604|让胡路区,230605|红岗区,230606|大同区,230621|肇州县,230622|肇源县,433130|龙山县,440000|广东省,440100|广州市,440101|市辖区,440103|荔湾区,440104|越秀区,440105|海珠
PHP下拉表单菜单
1、新建一个php文件，命名为test.php，用于讲解PHP实现下拉表单菜单。
2、在test.php文件内，使用html中的select标签创建下拉菜单，代码如下。
3、在test.php文件内，使用option标签创建一个提示选项“请选择职业”。
4、在test.php文件内，在select标签内，创建一个php数组，在数组中存储三个不同的职业名称。
5、在test.php文件内，使用foreach遍历上一步创建的数组$arr，每次遍历的数组值为$v。
6、在test.php文件内，使用echo输出option菜单，option菜单的value值和选项名称都为$v。
7、在浏览器运行test.php文件，查看实现的效果。
PHP里怎么获取下拉列表的value
首先你这个select应该是在一个form表单里面，然后这个form表单需要提交到一个php页面，并采用post方法，这个页面看起来应该是这个样子。
值
然后你需要在和这个文件同一个文件夹内建立一个php处理文件post.php，里面写如下代码
?php
$xx
=
$_post['xx'];
echo
$xx;
//代码结束
这样你提交后就可以看到这个值的输出了。/pre
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