PHP数组转换为js数组

背景：

当我们用mvc分层到时候，有时候需要初始化一些变量，并assign 至view的模版中，其中有一些是smarty这种引擎解析的php变量，有时候也需要来一发js解析的数组变量，以下例子就是简单拼接。

代码

<?php
//原始城市php 数组
$php_array=array (
  1 =>
  array (
    0 => '安徽-ah',
    101 => '合肥-hf',
    102 => '安庆-aq',
    103 => '蚌埠-bb',
    104 => '巢湖-ch',
    105 => '池州-cz',
    106 => '阜阳-fy',
    107 => '淮北-hb',
    108 => '淮南-hn',
    109 => '六安-la',
    110 => '马鞍山-mas',
    112 => '宁国-ng',
    113 => '铜陵-tl',
    114 => '芜湖-wh',
    115 => '宣城-xc',
    116 => '滁州-cz',
    117 => '亳州-bz',
    118 => '黄山-hs',
    120 => '宿州-sz',
    121 => '桐城-tc',
  ),
  2 =>
  array (
    0 => '北京-bj',
    201 => '北京-bj',
  ),
  3 =>
  array (
    0 => '福建-fj',
    301 => '福州-fz',
    302 => '厦门-xm',
    303 => '龙岩-ly',
    305 => '漳州-zz',
    306 => '莆田-pt',
    307 => '泉州-qz',
    309 => '武夷山-wys',
    314 => '南平-np',
    315 => '宁德-nd',
    318 => '三明-sm',
  ),
  4 =>
  array (
    0 => '甘肃-gs',
    401 => '兰州-lz',
    402 => '定西-dx',
    405 => '平凉-pl',
    407 => '临夏-lx',
    409 => '酒泉-jq',
    410 => '张掖-zy',
    411 => '庆阳-qy',
    412 => '武威-ww',
    415 => '天水-ts',
    416 => '白银-by',
    3113 => '金昌-jc',
  ),
  5 =>
  array (
    0 => '广东-gd',
    501 => '广州-gz',
    502 => '深圳-sz',
    503 => '珠海-zh',
    504 => '东莞-dg',
    505 => '中山-zs',
    507 => '汕头-st',
    510 => '潮州-cz',
    511 => '韶关-sg',
    513 => '湛江-zj',
    514 => '肇庆-zq',
    515 => '茂名-mm',
    516 => '梅州-mz',
    518 => '佛山-fs',
    520 => '惠州-hz',
    521 => '江门-jm',
    522 => '揭阳-jy',
    524 => '清远-qy',
    528 => '云浮-yf',
    532 => '阳江-yj',
    535 => '河源-hy',
    550 => '汕尾-sw',
    1012 => '揭东-jd',
    8110 => '顺德-sd',
  ),
  6 =>
  array (
    0 => '广西-gx',
    601 => '南宁-nn',
    602 => '柳州-lz',
    603 => '桂林-gl',
    604 => '北海-bh',
    605 => '百色-bs',
    608 => '贵港-gg',
    610 => '玉林-yl',
    612 => '钦州-qz',
    613 => '梧州-wz',
    618 => '防城港-fcg',
  ),
  7 =>
  array (
    0 => '贵州-gz',
    701 => '贵阳-gy',
    702 => '遵义-zy',
    703 => '兴义-xy',
    705 => '安顺-as',
    706 => '毕节-bj',
    707 => '都匀-dy',
    708 => '六盘水-lps',
    709 => '凯里-kl',
    710 => '铜仁-tr',
  ),
  8 =>
  array (
    0 => '海南-hn',
    801 => '海口-hk',
    803 => '三亚-sy',
    8101 => '儋州-dz',
  ),
  9 =>
  array (
    0 => '河北-hb',
    901 => '石家庄-sjz',
    902 => '唐山-ts',
    903 => '邢台-xt',
    905 => '秦皇岛-qhd',
    906 => '廊坊-lf',
    907 => '邯郸-hd',
    908 => '衡水-hs',
    909 => '沧州-cz',
    910 => '保定-bd',
    911 => '张家口-zjk',
    912 => '承德-cd',
    3112 => '三河-sh',
  ),
  10 =>
  array (
    0 => '河南-hn',
    1001 => '郑州-zz',
    1002 => '洛阳-ly',
    1004 => '信阳-xy',
    1005 => '新乡-xx',
    1006 => '商丘-sq',
    1007 => '三门峡-smx',
    1008 => '濮阳-py',
    1009 => '南阳-ny',
    1011 => '焦作-jz',
    1013 => '开封-kf',
    1014 => '安阳-ay',
    1016 => '鹤壁-hb',
    1018 => '平顶山-pds',
    1019 => '济源-jy',
    1021 => '驻马店-zmd',
  ),
  21 =>
  array (
    0 => '山东-sd',
    1015 => '德州-dz',
    2101 => '济南-jn',
    2102 => '青岛-qd',
    2103 => '烟台-yt',
    2104 => '威海-wh',
    2105 => '潍坊-wf',
    2106 => '泰安-ta',
    2107 => '枣庄-zz',
    2109 => '淄博-zb',
    2110 => '东营-dy',
    2111 => '高密-gm',
    2112 => '菏泽-hz',
    2113 => '滨州-bz',
    2114 => '聊城-lc',
    2117 => '临沂-ly',
    2118 => '济宁-jn',
    2120 => '日照-rz',
  ),
  11 =>
  array (
    0 => '黑龙江-hlj',
    1101 => '哈尔滨-heb',
    1102 => '大庆-dq',
    1103 => '齐齐哈尔-qqhe',
    1104 => '鹤岗-hg',
    1106 => '佳木斯-jms',
    1107 => '鸡西-jx',
    1108 => '牡丹江-mdj',
    1112 => '伊春-yc',
    1116 => '绥化-sh',
    1118 => '双鸭山-sys',
  )
);
 function get_provice_city_js($arrData=[],$jsVarName=''){

  $js_result='';
  $intCount=0;
   foreach($arrData as $intProv => $arrAreaData)
                {
                    $js_result .= $jsVarName.'['.$intCount++.'] = new Array(\''.$intProv.'-'.$arrAreaData[0].'\'';

                    //再循环省下面的城市
                    foreach($arrAreaData as $intCity => $strCity)
                    {

                      //如果是省份，忽略
                        if ($intCity == 0) {
                            continue;
                        }

                        $js_result .= ',\''.$intCity.'-'.$strCity.'\'';
                    }
                    $js_result .= ');'."\n";
                }
                return $js_result;

}

echo get_provice_city_js($php_array,'myProject.');

输出

myProject.[0] = new Array('1-安徽-ah','101-合肥-hf','102-安庆-aq','103-蚌埠-bb','104-巢湖-ch','105-池州-cz','106-阜阳-fy','107-淮北-hb','108-淮南-hn','109-六安-la','110-马鞍山-mas','112-宁国-ng','113-铜陵-tl','114-芜湖-wh','115-宣城-xc','116-滁州-cz','117-亳州-bz','118-黄山-hs','120-宿州-sz','121-桐城-tc');
myProject.[1] = new Array('2-北京-bj','201-北京-bj');
myProject.[2] = new Array('3-福建-fj','301-福州-fz','302-厦门-xm','303-龙岩-ly','305-漳州-zz','306-莆田-pt','307-泉州-qz','309-武夷山-wys','314-南平-np','315-宁德-nd','318-三明-sm');
myProject.[3] = new Array('4-甘肃-gs','401-兰州-lz','402-定西-dx','405-平凉-pl','407-临夏-lx','409-酒泉-jq','410-张掖-zy','411-庆阳-qy','412-武威-ww','415-天水-ts','416-白银-by','3113-金昌-jc');
myProject.[4] = new Array('5-广东-gd','501-广州-gz','502-深圳-sz','503-珠海-zh','504-东莞-dg','505-中山-zs','507-汕头-st','510-潮州-cz','511-韶关-sg','513-湛江-zj','514-肇庆-zq','515-茂名-mm','516-梅州-mz','518-佛山-fs','520-惠州-hz','521-江门-jm','522-揭阳-jy','524-清远-qy','528-云浮-yf','532-阳江-yj','535-河源-hy','550-汕尾-sw','1012-揭东-jd','8110-顺德-sd');
myProject.[5] = new Array('6-广西-gx','601-南宁-nn','602-柳州-lz','603-桂林-gl','604-北海-bh','605-百色-bs','608-贵港-gg','610-玉林-yl','612-钦州-qz','613-梧州-wz','618-防城港-fcg');
myProject.[6] = new Array('7-贵州-gz','701-贵阳-gy','702-遵义-zy','703-兴义-xy','705-安顺-as','706-毕节-bj','707-都匀-dy','708-六盘水-lps','709-凯里-kl','710-铜仁-tr');
myProject.[7] = new Array('8-海南-hn','801-海口-hk','803-三亚-sy','8101-儋州-dz');
myProject.[8] = new Array('9-河北-hb','901-石家庄-sjz','902-唐山-ts','903-邢台-xt','905-秦皇岛-qhd','906-廊坊-lf','907-邯郸-hd','908-衡水-hs','909-沧州-cz','910-保定-bd','911-张家口-zjk','912-承德-cd','3112-三河-sh');
myProject.[9] = new Array('10-河南-hn','1001-郑州-zz','1002-洛阳-ly','1004-信阳-xy','1005-新乡-xx','1006-商丘-sq','1007-三门峡-smx','1008-濮阳-py','1009-南阳-ny','1011-焦作-jz','1013-开封-kf','1014-安阳-ay','1016-鹤壁-hb','1018-平顶山-pds','1019-济源-jy','1021-驻马店-zmd');
myProject.[10] = new Array('21-山东-sd','1015-德州-dz','2101-济南-jn','2102-青岛-qd','2103-烟台-yt','2104-威海-wh','2105-潍坊-wf','2106-泰安-ta','2107-枣庄-zz','2109-淄博-zb','2110-东营-dy','2111-高密-gm','2112-菏泽-hz','2113-滨州-bz','2114-聊城-lc','2117-临沂-ly','2118-济宁-jn','2120-日照-rz');
myProject.[11] = new Array('11-黑龙江-hlj','1101-哈尔滨-heb','1102-大庆-dq','1103-齐齐哈尔-qqhe','1104-鹤岗-hg','1106-佳木斯-jms','1107-鸡西-jx','1108-牡丹江-mdj','1112-伊春-yc','1116-绥化-sh','1118-双鸭山-sys');
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