php＆json对象搜索和值检查

Question

我有一个存储在数据库中的json对象数组，它们实际上是Revolution滑块的设置。字符串从数据库表中检索，并分配到PHP变量是这样的：

$json = '[ 
     {"sliderType": "standard","options": ["standard","carousel","hero"]}, 
     {"sliderLayout": "auto","options": ["auto","fullwidth","fullscreen"]}, 
     {"responsiveLevels": 4096}, 
     {"gridwidth": 1200}, 
     {"gridheight": 700}, 
     {"autoHeight": "off","options": ["on","off"]}, 
     {"minHeight": 0}, 
     {"fullScreenOffsetContainer": ""}, 
     {"fullScreenOffset": "0"}, 
     {"delay": 9000}, 
     {"waitForInit": false,"options": [true,false]}, 
     {"disableProgressBar": "off","options": ["on","off"]}, 
     {"startDelay": 0}, 
     {"stopAfterLoops": -1}, 
     {"stopAtSlide": -1}, 
     {"viewPort": [ 
       {"enable": false,"options": [true,false]}, 
       {"outof": "wait","options": ["wait","pause"]}, 
       {"visible_area": "60%"} 
      ] 
     }, 
     {"lazyType": "smart","options": ["full","smart","single","none"]}, 
     {"dottedOverlay": "none","options": ["none","twoxtwo","threexthree","twoxtwowhite","threexthreewhite"]}, 
     {"shadow": 0,"options": [0,1,2,3,4,5,6]}, 
     {"spinner": "spinner0","options": ["off", "spinner0", "spinner1","spinner2", "spinner3", "spinner4", "spinner5"]}, 
     {"debugMode": false,"options": [true,false]}, 
     {"extensions": "extensions/"}, 
     {"extensions_suffix": ".min.js"}, 
     {"fallbacks": [ 
       {"panZoomDisableOnMobile": "off","options": ["on","off"]}, 
       {"nextSlideOnWindowFocus": "off","options": ["on","off"]}, 
       {"disableFocusListener": true,"options": [true,false]} 
      ] 
     }, 
     {"parallax": [ 
       {"type": "off","options": ["off","mouse","scroll","mouse+scroll"]}, 
       {"levels": [10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85]}, 
       {"origo": "enterpoint","options": ["slidercenter","enterpoint"]}, 
       {"speed": 400}, 
       {"bgparallax": "on","options": ["on","off"]}, 
       {"disable_onmobile": "off","options": ["on","off"]} 
      ] 
     }, 
     {"carousel": [ 
       {"horizontal_align": "center","options": ["left","right","center"]}, 
       {"vertical_align": "center","options": ["top","bottom","center"]}, 
       {"infinity": "on","options": ["on","off"]}, 
       {"space": 0}, 
       {"maxVisibleItems": 3}, 
       {"stretch": "off","options": ["on","off"]}, 
       {"fadeout": "off","options": ["on","off"]}, 
       {"maxRotation": 0}, 
       {"minScale": 0}, 
       {"vary_fade": "off","options": ["on","off"]}, 
       {"vary_rotation": "on","options": ["on","off"]}, 
       {"vary_scale": "off","options": ["on","off"]}, 
       {"border_radius": "0px"}, 
       {"padding_top": 0}, 
       {"padding_bottom": 0} 
      ] 
     }, 
     {"navigation": [ 
       {"keyboardNavigation": "on", "options": ["on","off"]}, 
       {"keyboard_direction": "horizontal", "options": ["horizontal","vertical"]}, 
       {"mouseScrollNavigation": "off", "options": ["on","off"]}, 
       {"onHoverStop": "on", "options": ["on","off"]}, 
       {"touch": [ 
         {"touchenabled": "on", "options": ["on", "off"]}, 
         {"swipe_treshold": 75}, 
         {"swipe_min_touches": 1}, 
         {"drag_block_vertical": false, "options": [true, false]}, 
         {"swipe_direction": "horizontal", "options": ["horizontal","vertical"]} 
        ] 
       }, 
       {"arrows": [ 
         {"style": ""}, 
         {"enable": false, "options": [true, false]}, 
         {"rtl": false, "options": [true, false]}, 
         {"hide_onmobile": false, "options": [true, false]}, 
         {"hide_onleave": true, "options": [true, false]}, 
         {"hide_delay": 200}, 
         {"hide_delay_mobile": 1200}, 
         {"hide_under": 0}, 
         {"hide_over": 9999}, 
         {"tmp": ""}, 
         {"left": [ 
           {"container": "slider", "options": ["slider","layergrid"]}, 
           {"h_align": "left", "options": ["left","center","right"]}, 
           {"v_align": "center", "otpions": ["top","center","bottom"]}, 
           {"h_offset": 20}, 
           {"v_offset": 0} 
          ] 
         }, 
         {"right": [ 
           {"container": "slider", "options": ["slider","layergrid"]}, 
           {"h_align": "left", "options": ["left","center","right"]}, 
           {"v_align": "center", "otpions": ["top","center","bottom"]}, 
           {"h_offset": 20}, 
           {"v_offset": 0} 
          ] 
         } 
        ] 
       }, 
       {"bullets": [ 
         {"style": ""}, 
         {"enable": false, "options": [true, false]}, 
         {"rtl": false, "options": [true, false]}, 
         {"container": "slider", "options": ["slider","layergrid"]}, 
         {"hide_onmobile": false, "options": [true, false]}, 
         {"hide_onleave": true, "options": [true, false]}, 
         {"hide_delay": 200}, 
         {"hide_delay_mobile": 1200}, 
         {"hide_under": 0}, 
         {"hide_over": 9999}, 
         {"tmp": "<span class=\"tp-bullet-image\"></span><span class=\"tp-bullet-title\"></span>"}, 
         {"direction": "horizontal", "options": ["horizontal","vertical"]}, 
         {"space": 0}, 
         {"h_align": "left", "options": ["left","center","right"]}, 
         {"v_align": "center", "otpions": ["top","center","bottom"]}, 
         {"h_offset": 20}, 
         {"v_offset": 0} 
        ] 
       }, 
       {"thumbnails": [ 
         {"style": ""}, 
         {"enable": false, "options": [true, false]}, 
         {"rtl": false, "options": [true, false]}, 
         {"container": "slider", "options": ["slider","layergrid"]}, 
         {"width": 100}, 
         {"height": 50}, 
         {"wrapper_padding": 2}, 
         {"wrapper_opacity": 1}, 
         {"wrapper_color": "#f5f5f5"}, 
         {"visibleAmount": 5}, 
         {"hide_onmobile": false, "options": [true, false]}, 
         {"hide_onleave": true, "options": [true, false]}, 
         {"hide_delay": 200}, 
         {"hide_delay_mobile": 1200}, 
         {"hide_under": 0}, 
         {"hide_over": 9999}, 
         {"tmp": "<span class=\"tp-thumb-image\"></span><span class=\"tp-thumb-title\"></span>"}, 
         {"direction": "horizontal", "options": ["horizontal","vertical"]}, 
         {"span": false, "options": [true, false]}, 
         {"position": "inner", "options": ["inner","outer-left","outer-right","outer-bottom","outer-top"]}, 
         {"space": 0}, 
         {"h_align": "left", "options": ["left","center","right"]}, 
         {"v_align": "center", "otpions": ["top","center","bottom"]}, 
         {"h_offset": 20}, 
         {"v_offset": 0} 
        ] 
       }, 
       {"tabs": [ 
         {"style": ""}, 
         {"enable": false, "options": [true, false]}, 
         {"rtl": false, "options": [true, false]}, 
         {"container": "slider", "options": ["slider","layergrid"]}, 
         {"width": 100}, 
         {"height": 50}, 
         {"wrapper_padding": 2}, 
         {"wrapper_opacity": 1}, 
         {"wrapper_color": "#f5f5f5"}, 
         {"visibleAmount": 5}, 
         {"hide_onmobile": false, "options": [true, false]}, 
         {"hide_onleave": true, "options": [true, false]}, 
         {"hide_delay": 200}, 
         {"hide_delay_mobile": 1200}, 
         {"hide_under": 0}, 
         {"hide_over": 9999}, 
         {"tmp": "<span class=\"tp-thumb-image\"></span><span class=\"tp-thumb-title\"></span>"}, 
         {"direction": "horizontal", "options": ["horizontal","vertical"]}, 
         {"span": false, "options": [true, false]}, 
         {"position": "inner", "options": ["inner","outer-left","outer-right","outer-bottom","outer-top"]}, 
         {"space": 0}, 
         {"h_align": "left", "options": ["left","center","right"]}, 
         {"v_align": "center", "otpions": ["top","center","bottom"]}, 
         {"h_offset": 20}, 
         {"v_offset": 0} 
        ] 
       } 
      ] 
     } 
    ]'; 

我可以把它转换成stdClass的对象或数组，需要什么的阵列。 我已经呈现了所有这些对象的页面，并使用了X-editable来根据需要更改值。所以，当x编辑插件单个对象发送新值的值的样子：

$_POST['name'] = 'navigation-arrows-left-container'; 
$_POST['value'] = 'customscontainer'; 
$_POST['pk'] = 1; 

再次

我能够从这些数值构建一个JSON对象字符串：

$levels = explode('-', $_POST['name']); 
$levels = array_reverse($levels); 
$newjson = ''; 
foreach($levels AS $level){ 
    if($newjson == ''){ 
     $newjson = '"'.$level.'":"'.$_POST['value'].'"'; 
    }else{ 
     $newjson = '"'.$level.'":[{'.$newjson.'}]'; 
    } 
} 
$newjson = '[{'.$newjson.'}]'; 

并将其转换为stdClass的对象或常规数组。 但我不知道如何测试新值是否与默认值相同，因为索引是不同的。我需要的是一个函数，它将检查已更改的键的值是否与默认对象中的值不同，如果不同，则返回true，如果与default相同，则返回false。

Answer 1

我不是100％确定我理解你在说什么，但是如果你想在嵌套数组中找到相应的设置，可以使用递归函数来隔离特定模式或键/值对。这里有一个例子：

/* 
** @description This function will recurse the array and find a pattern 
**    based on the supplied array 
*/ 
function search_array($array,$setting) 
    { 
     if(empty($setting)) 
      return $array; 

     foreach($array as $key => $value) { 
      if(is_array($value)) { 
       if(is_numeric($key)) { 
        $val = search_array($value,$setting); 
        if(!empty($val)) 
         $new[$key] = $val; 
       } 
       else { 
        if(is_array($setting) && isset($setting[0])) {    
         if($key == $setting[0]) { 
          unset($setting[0]); 
          $new[$key] = search_array($value,array_values($setting)); 
         } 
        } 
       } 
      } 
      else { 
       if(is_array($setting) && isset($setting[0])) { 
        if($setting[0] == $key) 
         $new[$key] = $value; 
       } 
      } 
     } 

     if(!empty($new)) { 
      return $new; 
     } 
    } 

上述功能为您提供了依据此字串navigation-arrows-left-container这个结果：

Array 
(
    [26] => Array 
     (
      [navigation] => Array 
       (
        [5] => Array 
         (
          [arrows] => Array 
           (
            [10] => Array 
             (
              [left] => Array 
               (
                [0] => Array 
                 (
                  [container] => slider 
                 ) 

               ) 

             ) 

           ) 

         ) 

       ) 

     ) 

) 

如果像上面提供的阵列，它就会输入到下一个函数

/* 
** @description This will flatten an array and find a specific key 
*/ 
function get_by_key($array,$search,&$save) 
    { 
     foreach($array as $key => $value) { 
      if($key == $search) { 
       $save[$key] = $value; 
      } 
      else { 
       if(is_array($value)) { 
        get_by_key($value,$search,$save); 
       } 
      } 
     } 
    } 
/* 
** @description This takes your post array and returns an array or false if it 
**    can't find the key 
*/ 
function get_setting($json,$POST) 
    { 
     # Set a storage array 
     $save  = array(); 
     # Explode the incoming string 
     $settings = explode('-',$POST['name']); 
     # Decode your json into an array for traversing 
     $array  = json_decode($json,true); 
     # Run the search 
     $new  = search_array($array,$settings); 
     # If empty, just stop 
     if(empty($new)) 
      return false; 
     # Continue on with processing searching for the proper key 
     get_by_key($new,array_pop($settings),$save); 
     # Return the results of that search 
     return (!empty($save))? $save : false; 
    } 

使用方法：

# The array input would be your $_POST array, I don't know how much you would 
# like to do with the one function 
print_r(get_setting($json,array('name'=>'navigation-arrows-left-container'))); 

以上阵列，在相同navigation-arrows-left-container串将使这最后数组：

Array 
(
    [0] => Array 
     (
      [container] => slider 
     ) 

) 

你可以一些逻辑组合成只是一个功能，而不是两个我有，但会采取更多的工作。这应该足以继续。