How to insert large JSON file to database with PHP - php

Question

So, I have a large JSON file and I want to insert data from that file to MySQL database. I can only use PHP 5.6 and can't change php.ini file.
When I'm using json_decode(), I get error, that there is to much memory to allocate. So I searched for some kind of library and I found this library and I'm using it like that:
set_time_limit(300);
$listener = new \JsonStreamingParser\Listener\InMemoryListener();
$stream = fopen('data/stops.json', 'r');
try {
$parser = new \JsonStreamingParser\Parser($stream, $listener);
$parser->parse();
fclose($stream);
} catch (Exception $e) {
fclose($stream);
throw $e;
}
var_dump($listener->getJson());
But I still get that annoying error about momory:
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried
to allocate 72 bytes) in
SOME/PATH/TO/vendor/salsify/json-streaming-parser/src/Parser.php on
line 516
I have no clue how to obtain my JSON file. So I'm looking for some advice, or someone who can help me to write a code that will be responsible for converting JSON file to array, so I colud insert data from that array to database. Also I'm not looking for one time solution, becouse I need to parse that JSON a least one per day.
Here is the whole JSON file: JSON, the structure looks like this:
{
"2017-07-26":
{
"lastUpdate":"2017-07-26 07:07:01",
"stops":[
{
"stopId":32640,
"stopCode":null,
"stopName":null,
"stopShortName":"2640",
"stopDesc":"Amona",
"subName":"2640",
"date":"2017-07-26",
"stopLat":54.49961,
"stopLon":18.44532,
"zoneId":null,
"zoneName":null,
"stopUrl":"",
"locationType":null,
"parentStation":null,
"stopTimezone":"",
"wheelchairBoarding":null,
"virtual":null,
"nonpassenger":null,
"depot":null,
"ticketZoneBorder":null,
"onDemand":null,
"activationDate":"2017-07-25"
},
{...},
{...}
]
}
}

Answer 1

You need to set the option via ini_set : http://php.net/manual/en/function.ini-set.php
ini_set('memory_limit','16M');
taken from https://davidwalsh.name/increase-php-memory-limit-ini_set
alternatively, you can use a .htaccess file :
php_value memory_limit '512M'
credit goes to https://stackoverflow.com/a/42578190/351861