I have a json array:
[
{
"var1": "9",
"var2": "16",
"var3": "16"
},
{
"var1": "8",
"var2": "15",
"var3": "15"
}
]
How can I loop through this array using php?
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Use json_decode to convert it to a PHP array.Phil– Phil2011-01-19 02:37:22 +00:00Commented Jan 19, 2011 at 2:37
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4 Answers
Decode the JSON string using json_decode() and then loop through it using a regular loop:
$arr = json_decode('[{"var1":"9","var2":"16","var3":"16"},{"var1":"8","var2":"15","var3":"15"}]');
foreach($arr as $item) { //foreach element in $arr
$uses = $item['var1']; //etc
}
1 Comment
superUntitled
+1 for this. it is exactly what I was trying to do, however the lack of the true for the associative array was giving me an error.
Set the second function parameter to true if you require an associative array
Some versions of php require a 2nd paramter of true if you require an associative array
$json = '[{"var1":"9","var2":"16","var3":"16"},{"var1":"8","var2":"15","var3":"15"}]';
$array = json_decode( $json, true );
1 Comment
Phil
There's no version specific reference to the second
assoc argumentFirst you have to decode your json :
$array = json_decode($the_json_code);
Then after the json decoded you have to do the foreach
foreach ($array as $key => $jsons) { // This will search in the 2 jsons
foreach($jsons as $key => $value) {
echo $value; // This will show jsut the value f each key like "var1" will print 9
// And then goes print 16,16,8 ...
}
}
If you want something specific just ask for a key like this. Put this between the last foreach.
if($key == 'var1'){
echo $value;
}
Comments
Use json_decode to convert the JSON string to a PHP array, then use normal PHP array functions on it.
$json = '[{"var1":"9","var2":"16","var3":"16"},{"var1":"8","var2":"15","var3":"15"}]';
$data = json_decode($json);
var_dump($data[0]['var1']); // outputs '9'
1 Comment
Kahn Kah
This doesn't loop through the array tho. It just retrieves the first value?