This time I will bring you the method of operating json in php. What are theprecautions for operating json in php? The following is a practical case, let's take a look.
The example is as follows:
// 追加写入用户名下文件 $code="001";//动态数据 $json_string = file_get_contents("text.json");// 从文件中读取数据到PHP变量 $data = json_decode($json_string,true);// 把JSON字符串转成PHP数组 $data[$code]=array("a"=>"as","b"=>"bs","c"=>"cs"); $json_strings = json_encode($data); file_put_contents("text.json",$json_strings);//写入 //修改 $json_string = file_get_contents("text.json");// 从文件中读取数据到PHP变量 $data = json_decode($json_string,true);// 把JSON字符串转成PHP数组 $data["001"]["a"]="aas"; $json_strings = json_encode($data); file_put_contents("text.json",$json_strings);//写入
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