<?php
$link=mysqli_connect("127.0.0.1","root","") or die("can't connect");
mysqli_select_db($link,"test") or die(mysqli_error($link));
mysqli_query($link,"drop table if exists oom") or die(mysqli_error($link));
mysqli_query($link,"create table oom(id int)") or die(mysqli_error($link));
mysqli_query($link,"insert into oom(id) values (1),(2),(3),(4),(5)") or die(mysqli_error($link));
for($i=0;$i<100000;$i++)
{
	mysqli_query($link,"set @var".$i."=repeat('a',100000)") or print('1 - ' . mysqli_error($link) . "\n");
	mysqli_query($link,"select * from oom group by id") or print('2 - ' . mysqli_error($link) . "\n");
}
mysqli_close($link);
?>