html - Get total number of name field from JSON within PHP -

html - Get total number of name field from JSON within PHP -

rather new using json php, bit of lastly resort having searched on net quite bit already. have illustration ison file below, wish able echo total number of 'name:' fields within eg. 4 in illustration below.

question: how go doing this?

[ { "age": "22", "name": "dave" }, { "age": "21", "name": "alan" }, { "age": "19", "name": "luke" }, { "age": "30", "name": "nina" } ]

if there name in each array just:

echo count(json_decode($json, true));

if name may or not nowadays in each array then:

php >= 5.5.0:

echo count(array_column(json_decode($json, true), 'name'));

php < 5.5.0:

$count = 0; foreach(json_decode($json, true) $k => $v) { isset($v['name']) ? $count++ : $count; } echo $count;

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