This time I will bring you a detailed explanation of the steps for reading, writing and modifying json files in PHP. What are the precautions for reading, writing and modifying JSON files 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Detailed explanation of the steps to implement single sign-in with Yii2
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