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php object json file

Object

  <?php
    $obj = (object) [
    'var1' => 'value_1',
    'var2' => 50,
    ];

    echo $obj->var1;
  ?>

JSON

<?php
$myObj->name = "John";
$myObj->age = 30;
$myObj->city = "New York";

$myJSON = json_encode($myObj);

echo $myJSON;
?>

file

  • fopen(const char* filename, const char* mode);
  • r:읽기형식, w:쓰기, a:덧붙이기
  • 참고: https://modoocode.com/58
$value_txt = "test string data";
$file_url = "file.txt";   
$data_file = fopen(file_url, "w");  
fwrite($data_file, $value_txt);  
fclose($data_file);

Object -> json -> file

$obj->min = 0;
$obj->max = 100;
$json = json_encode($obj);
$file_url = "file.txt";
$data_file = fopen($file_url, "w");
fwrite($data_file, $json);  
fclose($data_file);

file -> json -> Object

$file_url = "file.txt";
$data_file2 = fopen($file_url, "r") or die("Unable to open file!");
$json2 = fread($data_file2,filesize($file_url));
fclose($data_file2);
$obj2 = json_decode($json2);
echo $obj2->min;
echo $obj2->max;