php提取txt文本存储json数据中的域名

目的：提取爱名网、腾讯、阿里等域名售卖列表域名信息

php代码

<?php

	$file_path = "ym.txt";//文件路径

	if(file_exists($file_path)){
    

		$str = file_get_contents($file_path);//将整个文件内容读入到一个字符串中
		
		$str=iconv("GBK","UTF-8",$str);//中文乱码
		
		$arr = json_decode($str,true);//将字符串格式json转成数组
		
		//展示数组数据
		//echo "<pre>";
		//print_r($arr);
		//echo "</pre>";
		
		foreach($arr as $v){
    
			echo $v['Domain'];//提取的key
			echo "<br>";
		}
	
	}else{
    
		echo '文件不存在';
	}

文本格式

[
  {
    
    "IsSyncTui": 1,
    "BPrice": 0,
    "PackageId": -1,
    "Url": "/ykj/chujia_30364309.html",
    "IsIdn": false,
    "CurBidders": "无",
    "Lefttime": "10天10时",
    "Domain": "1L6.cn",
    "OriginalPrice": 40,
    "BidCount": "0",
    "MinPrice": "￥40",
    "IsDaiGuan": 0,
    "Domains": "1L6.cn",
    "IsTG": 0,
    "IsGq": 0,
    "RexpireDate": "11天",
    "cxImgUrl": "",
    "avgPrice": "￥40",
    "timered": "",
    "Id": 30364309,
    "Currentpri": "￥0",
    "EndTime": "2022-06-23T20:02:14",
    "Registrar": "爱名网",
    "DetailsType": 2,
    "IsBegin": 1,
    "Type": "一口价",
    "Introduce": "一千 不讲价",
    "Clicks": 92,
    "TradeType": 2,
    "Platform": "",
    "RegisterDate": "2021-06-24"
  },
  {
    
    "IsSyncTui": 1,
    "BPrice": 0,
    "PackageId": -1,
    "Url": "/ykj/chujia_29112996.html",
    "IsIdn": false,
    "CurBidders": "无",
    "Lefttime": "26天19时",
    "Domain": "o9b.cn",
    "OriginalPrice": 55,
    "BidCount": "0",
    "MinPrice": "￥55",
    "IsDaiGuan": 0,
    "Domains": "o9b.cn",
    "IsTG": 0,
    "IsGq": 0,
    "RexpireDate": "27天",
    "cxImgUrl": "",
    "avgPrice": "￥55",
    "timered": "",
    "Id": 29112996,
    "Currentpri": "￥0",
    "EndTime": "2022-07-10T04:06:42",
    "Registrar": "爱名网",
    "DetailsType": 2,
    "IsBegin": 1,
    "Type": "一口价",
    "Introduce": "更多域名访问93mk.com",
    "Clicks": 263,
    "TradeType": 2,
    "Platform": "",
    "RegisterDate": "2021-07-11"
  }
]

输出