<?php
//You must validate your input to make sure the string you pass is not empty and is, in fact, a string. An empty string is not valid JSON.
function is_json($string) {
return !empty($string) && is_string($string) && is_array(json_decode($string, true)) && json_last_error() == 0;
}
//I think in PHP it's more important to determine if the JSON object even has data, because to use the data you will need to call json_encode() //or json_decode(). I suggest denying empty JSON objects so you aren't unnecessarily running encodes and decodes on empty data.
function has_json_data($string) {
$array = json_decode($string, true);
return !empty($string) && is_string($string) && is_array($array) && !empty($array) && json_last_error() == 0;
}
function isJson($string, $assoc = false) {
var_dump(json_decode($string));
json_decode($string, $assoc);
if(!empty($string) && is_string($string)) {
json_decode($string, $assoc);
return (json_last_error() == JSON_ERROR_NONE);
// return json_decode($str) != null;
}
return false;
}
$a=['arraiii'=>['dentro'=>234]];
$b=json_encode($a);
$c='{
"book": [
{
"id":"01",
"language": "Java",
"edition": "third",
"author": "Herbert Schildt"
},
{
"id":"07",
"language": "C++",
"edition": "second"
"author": "E.Balagurusamy"
}]
}';
var_dump(isJson($a));