PHP - 在没有“字符串”的情况下循环遍历 JSON 数组？

Question

So I have question. I have an JSON Array

Here's the JSON: http://pastebin.com/raw/XEzAEdfg

How could I loop it through? Here's what I've tried at the moment:

$output = json_decode($result2);
foreach($output as $SuiFag){
    echo $SuiFag->aaData[6];
}
?>

Answer 1

I suppose you data json data should be an object attribute named "aaData" of type array so only a [ character should be there, and { and } should define the start and the end of the json object(traling comma is not allowed):

$result2='{
   "aaData": [
         "Knife",
         "/id/1676/",
         "★ Karambit | Stained (Field-Tested)<\/a>",
         "234.87",
         "224.85",
         "5907380460<\/a>",
         "0.2123493403<\/a>",
         "Inspect<\/a>"
      ]
}';

So you can use direct object attribute access (you need foreach to scan an array but not the attribute of an object):

$output = json_decode($result2);
echo $output->aaData[6];

OR if your json structure is something like this: allowed):

$result2='{
    ...
   "aaData": [
        [
         "Knife",
         "/id/1676/",
         "★ Karambit | Stained (Field-Tested)<\/a>",
         "234.87",
         "224.85",
         "5907380460<\/a>",
         "0.2123493403<\/a>",
         "Inspect<\/a>"
        ],
        ...
    ]
}';

then your code should be:

$output = json_decode($result2);
foreach($output->aaData as $SuiFag){
    echo $SuiFag[6];
}

TO print every 6th element of every element of the array "aaData";

Answer 2

You need to loop through the aaData array then output the 6th line. The below will output the 6th line of every aaData array

$output = json_decode($result2);
foreach($output as $SuiFag) {
    for($i=0; $i<count($SuiFag);$i++) {
        echo $SuiFag[$i][6] . '<br>';
    }
}
?>

Of course you can add a third loop if you want to echo each item of the array out

$output = json_decode($result2);
foreach($output as $SuiFag) {
    for($i=0; $i<count($SuiFag);$i++) {
        for($x=0; $x<count($SuiFag[$i]);$x++) {
            echo $SuiFag[$i][$x] . '<br>';
        }
    }
}
?>

Since you have only the aaData in your json you could shorten this down to but above allows for further items in your json array:

foreach($output->aaData as $SuiFag) {
    for($i=0; $i<count($SuiFag);$i++) {
        echo $SuiFag[$i] . '<br>';
    }
}

Credits to lamp76