I have a sample code:
$json_encode = '{"OS":"Android","Title":"Galaxy"}';
$json_decode = json_decode($json_encode);
foreach($json_decode as $key => $value) {
if($key == 'Title') {
unset($key);
}
}
print_r(json_encode($json_decode));
But result can't remove key='Title' from that json string, how to fix it?
You don't need those extra lines of code, if the Title index comes always, then you can unset the Title index directly :
$json_encode = '{"OS":"Android","Title":"Galaxy"}';
$json_decode = json_decode($json_encode);
unset($json_decode['Title']);
See the link below for more information on PHP Array Unset function, you are making mistake on simple syntax.
You forgot to include the array in the unset statement. It should be:
unset($json_decode[$key]);
Actually, for your particular example, you don't even need a loop, you can unset the value directly.
Also to get an associative array from the json_encode function, you need to add another parameter:
$json_decode = json_decode($json_encode, true);
$json_encode = '{"OS":"Android","Title":"Galaxy"}';
$json_decode = json_decode($json_encode, true);
foreach ($json_decode as $key => $value) {
if (in_array('Title', $value)) {
unset($json_decode[$key]);
}
}
$json_encode = json_encode($json_decode);
$json_decode = json_decode($json_encode,TRUE);
If "TRUE" is not passed, json_decode returns an object.
Also replace unset($key) with unset($json_decode[$key]);
