Php 从json文件中存在的对象中提取值_Php_Json

Php 从json文件中存在的对象中提取值

php json

Php 从json文件中存在的对象中提取值,php,json,Php,Json,我想从对象中获取值。应该从衬衫开始。它还应该检查它是否是mega_菜单。如果是大菜单，则显示其子菜单。也取决于megamenu的值，它应该应用类“parent” { "1": { "title": "Root Catalog", "url": null, "id": "1", "img_url": null, "mega_menu": "true", "children": {

我想从对象中获取值。应该从衬衫开始。它还应该检查它是否是mega_菜单。如果是大菜单，则显示其子菜单。也取决于megamenu的值，它应该应用类“parent”

{
    "1": {
        "title": "Root Catalog",
        "url": null,
        "id": "1",
        "img_url": null,
        "mega_menu": "true",
        "children": {
            "2": {
                "title": "Default Category",
                "url": null,
                "id": "2",
                "img_url": null,
                "mega_menu": "true",
                "children": {
                    "4": {
                        "title": "shirts",
                        "url": "shirts",
                        "id": "4",
                        "img_url": null,
                        "mega_menu": "false"
                    },
                    "8": {
                        "title": "qme31q",
                        "url": "dresses",
                        "id": "8",
                        "img_url": null,
                        "mega_menu": "true",
                        "children": {
                            "20": {
                                "title": "srtysryt",
                                "url": "srtysryt",
                                "id": "20",
                                "img_url": null,
                                "mega_menu": "false"
                            }
                        }
                    },
                    "11": {
                        "title": "Jackets + Sweaters",
                        "url": "jackets-sweaters",
                        "id": "11",
                        "img_url": null,
                        "mega_menu": "false"
                    },
                    "12": {
                        "title": "Accessories",
                        "url": "accessories",
                        "id": "12",
                        "img_url": null,
                        "mega_menu": "true",
                        "children": {
                            "26": {
                                "title": "a",
                                "url": "a",
                                "id": "26",
                                "img_url": null,
                                "mega_menu": "false"
                            }
                        }
                    },
                    "13": {
                        "title": "Plus",
                        "url": "plus",
                        "id": "13",
                        "img_url": null,
                        "mega_menu": "false"
                    },
                    "22": {
                        "title": "abcde",
                        "url": "abcde",
                        "id": "22",
                        "img_url": null,
                        "mega_menu": "true",
                        "children": {
                            "23": {
                                "title": "dduy",
                                "url": "dduy",
                                "id": "23",
                                "img_url": null,
                                "mega_menu": "false"
                            }
                        }
                    },
                    "24": {
                        "title": "1",
                        "url": "1",
                        "id": "24",
                        "img_url": null,
                        "mega_menu": "true",
                        "children": {
                            "25": {
                                "title": "1.1",
                                "url": "1-1",
                                "id": "25",
                                "img_url": null,
                                "mega_menu": "false"
                            }
                        }
                    }
                }
            },
            "16": {
                "title": "test",
                "url": "test",
                "id": "16",
                "img_url": null,
                "mega_menu": "false"
            },
            "18": {
                "title": "rest",
                "url": "rest",
                "id": "18",
                "img_url": null,
                "mega_menu": "false"
            },
            "29": {
                "title": "q",
                "url": "q",
                "id": "29",
                "img_url": null,
                "mega_menu": "false"
            }
        }
    }
}

下面的代码将您的阵列转换为Ul li列表

// Build parent ul
function BuildMegaMenu($arr,$class = 'parent')
{
    if(!empty($arr))
    {
        $html = "<ul class='p_category'>";
        foreach($arr as $val)
        {
            if($val['mega_menu'] && !empty($val['children'])) //  check for mega menu and children
            {
                // call sub helper function for procesing the children of children
                // making a ul li with class
                $rs = SubBuildMegaMenu($val['children'], 'parent'); 
                if(!empty($rs)) {
                    $html .= "<li>";
                        $html .= "<div class='".$class."'>";
                            $html .= $val['title'];
                            $html .= $rs;
                        $html .= "</div>";  
                    $html .= "</li>";
                }
            }
            else {
                $html .= "<li><div class='parent'>".$val['title']."</div></li>";
            }
        }
        $html .= "</ul>";
        return $html;
    }
    return false;
}

// Sub helper function for processing childrens
function SubBuildMegaMenu($arr, $class = 'parent')
{
    if(!empty($arr))
    {
        $html = "<ul>";
        foreach($arr as $val)
        {
            if($val['mega_menu'] && !empty($val['children'])) //  check for mega menu and children
            {
                // call sub helper function for procesing the children of children
                // making a ul li with class
                $rs = SubBuildMegaMenu($val['children'], $class);
                if(!empty($rs))
                {
                    $html .= "<li>";
                        $html .= "<div class='".$class."'>";
                            $html .= $val['title'];
                            $html .= $rs;
                        $html .= "</div>";  
                    $html .= "</li>";
                }
            }
            else{
                $html .= "<li><div class='parent'>".$val['title']."</div></li>";
            }
        }
        $html .= "</ul>";
        return  $html;
    }
}
$data = '{
"1": {
    "title": "Root Catalog",
    "url": null,
    "id": "1",
    "img_url": null,
    "mega_menu": "true",
    "children": {
        "2": {
            "title": "Default Category",
            "url": null,
            "id": "2",
            "img_url": null,
            "mega_menu": "true",
            "children": {
                "4": {
                    "title": "shirts",
                    "url": "shirts",
                    "id": "4",
                    "img_url": null,
                    "mega_menu": "false"
                },
                "8": {
                    "title": "qme31q",
                    "url": "dresses",
                    "id": "8",
                    "img_url": null,
                    "mega_menu": "true",
                    "children": {
                        "20": {
                            "title": "srtysryt",
                            "url": "srtysryt",
                            "id": "20",
                            "img_url": null,
                            "mega_menu": "false"
                        }
                    }
                },
                "11": {
                    "title": "Jackets + Sweaters",
                    "url": "jackets-sweaters",
                    "id": "11",
                    "img_url": null,
                    "mega_menu": "false"
                },
                "12": {
                    "title": "Accessories",
                    "url": "accessories",
                    "id": "12",
                    "img_url": null,
                    "mega_menu": "true",
                    "children": {
                        "26": {
                            "title": "a",
                            "url": "a",
                            "id": "26",
                            "img_url": null,
                            "mega_menu": "false"
                        }
                    }
                },
                "13": {
                    "title": "Plus",
                    "url": "plus",
                    "id": "13",
                    "img_url": null,
                    "mega_menu": "false"
                },
                "22": {
                    "title": "abcde",
                    "url": "abcde",
                    "id": "22",
                    "img_url": null,
                    "mega_menu": "true",
                    "children": {
                        "23": {
                            "title": "dduy",
                            "url": "dduy",
                            "id": "23",
                            "img_url": null,
                            "mega_menu": "false"
                        }
                    }
                },
                "24": {
                    "title": "1",
                    "url": "1",
                    "id": "24",
                    "img_url": null,
                    "mega_menu": "true",
                    "children": {
                        "25": {
                            "title": "1.1",
                            "url": "1-1",
                            "id": "25",
                            "img_url": null,
                            "mega_menu": "false"
                        }
                    }
                }
            }
        },
        "16": {
            "title": "test",
            "url": "test",
            "id": "16",
            "img_url": null,
            "mega_menu": "false"
        },
        "18": {
            "title": "rest",
            "url": "rest",
            "id": "18",
            "img_url": null,
            "mega_menu": "false"
        },
        "29": {
            "title": "q",
            "url": "q",
            "id": "29",
            "img_url": null,
            "mega_menu": "false"
        }
    }
}}';
$convertedArr = json_decode($data, true);
echo '<pre>';print_r(BuildMegaMenu($convertedArr));die;

//构建父ul
函数BuildMegaMenu（$arr，$class='parent'）
{
如果（！空（$arr））
{
$html=“”；
外汇（$arr作为$val）
{
if（$val['mega_menu']&&&！empty（$val['children']）//检查mega menu和children
{
//调用子助手函数以处理子对象的子对象
//在课堂上做一个ulli
$rs=SubBuildMegaMenu（$val['children'，'parent'）；
如果（！空（$rs））{
$html.=“”；
$html.=”；
$html.=$val['title']；
$html.=$rs；
$html.=”；
$html.=“”；
}
}
否则{
$html.=“”$val['title']。“”；
}
}
$html.=“”；
返回$html；
}
返回false；
}
//用于处理子对象的子辅助函数
函数子BuildMegaMenu（$arr，$class='parent'）
{
如果（！空（$arr））
{
$html=“”；
外汇（$arr作为$val）
{
if（$val['mega_menu']&&&！empty（$val['children']）//检查mega menu和children
{
//调用子助手函数以处理子对象的子对象
//在课堂上做一个ulli
$rs=SubBuildMegaMenu（$val['children'，$class）；
如果（！空（$rs））
{
$html.=“”；
$html.=”；
$html.=$val['title']；
$html.=$rs；
$html.=”；
$html.=“”；
}
}
否则{
$html.=“”$val['title']。“”；
}
}
$html.=“”；
返回$html；
}
}
$data={
"1": {
“标题”：“根目录”，
“url”：空，
“id”：“1”，
“img_url”：空，
“mega_菜单”：“正确”，
“儿童”：{
"2": {
“标题”：“默认类别”，
“url”：空，
“id”：“2”，
“img_url”：空，
“mega_菜单”：“正确”，
“儿童”：{
"4": {
“头衔”：“衬衫”，
“url”：“衬衫”，
“id”：“4”，
“img_url”：空，
“mega_菜单”：“错误”
},
"8": {
“标题”：“qme31q”，
“url”：“连衣裙”，
“id”：“8”，
“img_url”：空，
“mega_菜单”：“正确”，
“儿童”：{
"20": {
“标题”：“srtysryt”，
“url”：“srtysryt”，
“id”：“20”，
“img_url”：空，
“mega_菜单”：“错误”
}
}
},
"11": {
“标题”：“夹克+毛衣”，
“url”：“夹克衫”，
“id”：“11”，
“img_url”：空，
“mega_菜单”：“错误”
},
"12": {
“标题”：“附件”，
“url”：“附件”，
“id”：“12”，
“img_url”：空，
“mega_菜单”：“正确”，
“儿童”：{
"26": {
“标题”：“a”，
“url”：“a”，
“id”：“26”，
“img_url”：空，
“mega_菜单”：“错误”
}
}
},
"13": {
“头衔”：“加上”，
“url”：“加”，
“id”：“13”，
“img_url”：空，
“mega_菜单”：“错误”
},
"22": {
“头衔”：“abcde”，
“url”：“abcde”，
“id”：“22”，
“img_url”：空，
“mega_菜单”：“正确”，
“儿童”：{
"23": {
“标题”：“dduy”，
“url”：“dduy”，
“id”：“23”，
“img_url”：空，
“mega_菜单”：“错误”
}
}
},
"24": {
“标题”：“1”，
“url”：“1”，
“id”：“24”，
“img_url”：空，
“mega_菜单”：“正确”，
“儿童”：{
"25": {
“标题”：“1.1”，
“url”：“1-1”，
“id”：“25”，
“img_url”：空，
“mega_菜单”：“错误”
}
}
}
}
},
"16": {
“标题”：“测试”，
“url”：“测试”，
“id”：“16”，
“img_url”：空，
“mega_菜单”：“错误”
},
"18": {
“头衔”：“休息”，
“url”：“rest”，
“id”：“18”，
“img_url”：空，
“mega_菜单”：“错误”
},
"29": {
“标题”：“q”，