According to php manual:
<?php
$a =& $b;
?>
// Note:
// $a and $b are completely equal here. $a is not pointing to $b or vice versa.
// $a and $b are pointing to the same place.
I assume that:
<?php
$x = "something";
$y = $x;
$z = $x;
should consume more memory than:
<?php
$x = "something";
$y =& $x;
$z =& $x;
because, if i understood it right, in the first case we 'duplicate' the value something and assign it to $y and $z having in the end 3 variables and 3 contents, while in the second case we have 3 variables pointing the same content.
So, with a code like:
$value = "put something here, like a long lorem ipsum";
for($i = 0; $i < 100000; $i++)
{
${"a$i"} =& $value;
}
echo memory_get_usage(true);
I expect to have a memory usage lower than:
$value = "put something here, like a long lorem ipsum";
for($i = 0; $i < 100000; $i++)
{
${"a$i"} = $value;
}
echo memory_get_usage(true);
But the memory usage is the same in both cases.
What am I missing?
