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array_diff — Calculate the difference of arrays
Description:
array array_diff ( array $array1
, array y $array2
[, array $. ..
] ) Comparison returns values that are in array1
but not in array2
or any other parameter array. Note that the key names remain unchanged.
Note: This function only checks one dimension of the multi-dimensional array. If you want to compare deeper dimensions, you need to write another function. Today's work encountered such a need, so I wrote a function to compare deeper dimensions.
php header("Content-type:text/html;charset=utf-8"); $json1='{ "filedir":"default", "pages" : [ { "name" : "首页", "blocks":[ { "name":"头部标题栏", "blocktype":"title_bar", "settings":{ "is_show":true, "bg_color":"#1eb7a4", "content_switch":true, "content":"", "bg_url":"", "color":"#fff", "border_bottom_color":"", "border_bottom_width":"0" } }, { "name":"头部广告图", "blocktype":"ad_picture", "settings":{ "is_show":true, "bg_url":"" } }, { "name":"广告", "blocktype":"ad", "settings":{ "is_show":true, "number":5, "show_type":"scroll" } }, { "name":"菜单", "blocktype":"menu", "settings":{ "is_show":true, "bg_color":"#fff", "color":"#1eb7a4" } }, { "name":"个人中心", "blocktype":"personal_center", "settings":{ "is_show":true, "bg_color":"#fff", "color":"#1eb7a4" } }, { "name":"上网按钮", "blocktype":"online_button", "settings":{ "is_show":true, "offline_bg_url":"", "online_bg_url":"" } } ] }, { "name" : "登录页", "blocks":[ { "name":"页面背景", "blocktype":"page_bg", "settings":{ "is_show":true, "bg_url":"", "bg_color":"" } }, { "name":"logo图", "blocktype":"logo", "settings":{ "is_show":true, "bg_url":"" } }, { "name":"登录模块", "blocktype":"login", "settings":{ "is_show":true, "success_url":"" } } ] }, { "name" : "认证过程页", "duration":"5", "blocks":[ { "name":"页面背景", "blocktype":"page_bg", "settings":{ "is_show":false, "bg_url":"" } }, { "name":"登录动画", "blocktype":"login_animate", "settings":{ "is_show":true, "bg_url":"" } } ] }, { "name" : "登录成功页", "blocks":[ { "name":"头部广告图", "blocktype":"ad_picture", "settings":{ "is_show":true, "bg_url":"" } }, { "name":"成功页app", "blocktype":"apps", "settings":{ "is_show":true } }, { "name":"成功页提示信息", "blocktype":"success_tips", "settings":{ "is_show":false, "color":"#fff", "content":"" } } ] }, { "name" : "广告细览页", "blocks":[ { "name":"头部标题栏", "blocktype":"title_bar", "settings":{ "is_show":true, "bg_color":"#1eb7a4", "content_switch":true, "content":"", "bg_url":"", "color":"#fff", "border_bottom_color":"", "border_bottom_width":"0" } } ] } ] }'; $json2='{ "filedir":"default", "pages" : [ { "name" : "首页", "blocks":[ { "name":"头部标题栏", "blocktype":"title_bar", "settings":{ "is_show":true, "bg_color":"#1eb7a4", "content_switch":true, "content":"", "bg_url":"", "color":"#fff", "border_bottom_color":"", "border_bottom_width":"0" } }, { "name":"头部广告图", "blocktype":"ad_picture", "settings":{ "is_show":true, "bg_url":"" } }, { "name":"广告", "blocktype":"ad", "settings":{ "is_show":true, "number":5, "show_type":"scroll" } }, { "name":"菜单", "blocktype":"menu", "settings":{ "is_show":true, "bg_color":"#fff", "color":"#1eb7a4" } }, { "name":"个人中心", "blocktype":"personal_center", "settings":{ "is_show":true, "bg_color":"#fff", "color":"#1eb7a4" } }, { "name":"上网按钮", "blocktype":"online_button", "settings":{ "is_show":true, "offline_bg_url":"", "online_bg_url":"" } } ] }, { "name" : "登录页", "blocks":[ { "name":"页面背景", "blocktype":"page_bg", "settings":{ "is_show":true, "bg_url":"", "bg_color":"" } }, { "name":"logo图", "blocktype":"logo", "settings":{ "is_show":true, "bg_url":"" } }, { "name":"登录模块", "blocktype":"login", "settings":{ "is_show":true, "success_url":"" } } ] }, { "name" : "认证过程页", "duration":"5", "blocks":[ { "name":"页面背景", "blocktype":"page_bg", "settings":{ "is_show":false, "bg_url":"" } }, { "name":"登录动画", "blocktype":"login_animate", "settings":{ "is_show":true, "bg_url":"" } } ] }, { "name" : "登录成功页", "blocks":[ { "name":"头部广告图", "blocktype":"ad_picture", "settings":{ "is_show":true, "bg_url":"" } }, { "name":"成功页app", "blocktype":"apps", "settings":{ "is_show":true } }, { "name":"成功页提示信息", "blocktype":"success_tips", "settings":{ "is_show":false, "color":"#fff", "content":"" } } ] }, { "name" : "广告细览页", "blocks":[ { "name":"头部标题栏", "blocktype":"title_bar", "settings":{ "is_show":true, "bg_color":"#1eb7a4", "content_switch":true, "content":"", "bg_url":"", "color":"#fff", "border_bottom_color":"", "border_bottom_width":"0" } } ] } ] }'; $array1=json_decode($json1,true); $array2=json_decode($json2,true); function array_recursive_diff($array1, $array2) { $result = array(); foreach ($array1as$key1 => $value1) { if (array_key_exists($key1, $array2)) { if (is_array($value1)) { $diff = array_recursive_diff($value1, $array2[$key1]); if (count($diff)) { $result[$key1] = $diff; } } else { if ($value1 != $array2[$key1]) { $result[$key1] = $value1; } } } else { $result[$key1] = $value1; } } return$result; } $result=array_recursive_diff($array1, $array2); echo ''; var_dump($result); if(empty($result)){ echo '完全相同'; }else{ echo '完全不相同'; }
The above introduces the precautions for the array_diff function, including the relevant aspects. I hope it will be helpful to friends who are interested in PHP tutorials.