Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 20480 bytes) in Codeigniter

Question

While fetching more than 300k records in mysql, i'm getting error like this

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 20480 bytes) in

Project\system\database\drivers\mysqli\mysqli_result.php on line 229.

I have increased memory_limit up to 1024M and changed to -1 also.

i can't find the solution till

Answer 1

Use PHP Generators instead

function getData()
{
    $sql = 'SELECT * FROM table';
    $q= $this->conn->prepare($sql);
    $q->execute();
    while ($row = $q->fetch(PDO::FETCH_ASSOC)) {
        yield $row;
    }
}

foreach ($this->getData() as $record) {
    //
}