php - How to pass a JSON to checkbox

Question

Json

{"segment":"Class I-V Tuition,Class VI-VIII Tuition"
 ,"Board":["cbse"]
 ,"Class I-V":["Allsubject"]
 ,"Class VI-VIII":["cbse","cse/Ise"]
 ,"Class VI-VIII Subject":["Allsubject","Science"]
 ,"Class XI-X":null
 ,"Class XI-X Subject":null
 ,"Class XI-XII":null
 ,"Class XI-XII Subject":null
 ,"Languagesubject":null
 ,"engineering":null
 ,"Diploma":null
 ,"Dancesubject":null
 ,"Degree Course":null
 ,"Degree Subject":null
}

Here  key:Board
      value:cbse
      key:Class I-V
      value:Allsubject like wise json pattern stored in classconducted column

My questions are:

1. How to retrieve the json string?

2. I have tried like this.

   $sqledit = mysql_query("select * from  tinfo where tsname='" .$_SESSION['tutorname'] ."'");
   $row = mysql_fetch_array($sqledit); 
   foreach (json_decode($row['classconducted'], true) as $key => $val) {
      if($key!='' && $val!='') {
         echo '<span class="details">'.$key.'</span>'.': '."<br/><br/>";
         if (is_array($val))
           echo implode(',', $val) . "<br/><br/>";
         else
           echo $val . "<br/>";
       }
   }
   

Now I want to edit the page. So using foreach I separate the values. Here I have decode the json values. now the values are coming . I want to know how to pass the json values to my form. Here is my form. I have tried like this, I don't know what is wrong in my code.

I want ouptut like this: check this is this correct

<input type="checkbox" name="board[]"  value="cbse" <?php if($val[0]=='cbse'){echo "checked";}?>>CBSE
<input type="checkbox" name="board[]"  value="cse/Ise" <?php if($val[1]=='ICSE/ISE'){echo "checked";}?>>ICSE/ISE.

Answer 1

You do the same as in your other question, but parse the JSON instead of exploding it.

$cats = json_decode($row['classconducted'], true);

<input type="checkbox" name="segment[]" value="Class I-V Tuition" <?php if(in_array('Class I-V Tuition', $cats)) { echo "checked"; }?>> Class I-V Tuition