Created
September 21, 2013 19:00
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<?php | |
function memdiff() { | |
static $int = null; | |
$current = memory_get_usage(); | |
if ($int === null) { | |
$int = $current; | |
} else { | |
print ($current - $int) . "\n"; | |
$int = $current; | |
} | |
} | |
function object_no_unset($iters) { | |
$i = 0; | |
$object = new StdClass; | |
for (;$i < $iters; $i++) { | |
$object->{"member_" . $i}= array("blah blah blha" => 12345); | |
$object->{"membersonly_" . $i}= new StdClass; | |
$object->{"onlymember"}= array("blah blah blha" => 12345); | |
} | |
} | |
function object_parent_unset($iters) { | |
$i = 0; | |
$object = new StdClass; | |
for (;$i < $iters; $i++) { | |
$object->{"member_" . $i}= array("blah blah blha" => 12345); | |
$object->{"membersonly_" . $i}= new StdClass; | |
$object->{"onlymember"}= array("blah blah blha" => 12345); | |
} | |
unset ($object); | |
} | |
function object_item_unset($iters) { | |
$i = 0; | |
$object = new StdClass; | |
for (;$i < $iters; $i++) { | |
$object->{"member_" . $i}= array("blah blah blha" => 12345); | |
$object->{"membersonly_" . $i}= new StdClass; | |
$object->{"onlymember"}= array("blah blah blha" => 12345); | |
unset ($object->{"membersonly_" . $i}); | |
unset ($object->{"member_" . $i}); | |
unset ($object->{"onlymember"}); | |
} | |
unset ($object); | |
} | |
function array_no_unset($iters) { | |
$i = 0; | |
$object = array(); | |
for (;$i < $iters; $i++) { | |
$object["member_" . $i] = array("blah blah blha" => 12345); | |
$object["membersonly_" . $i] = new StdClass; | |
$object["onlymember"] = array("blah blah blha" => 12345); | |
} | |
} | |
function array_parent_unset($iters) { | |
$i = 0; | |
$object = array(); | |
for (;$i < $iters; $i++) { | |
$object["member_" . $i] = array("blah blah blha" => 12345); | |
$object["membersonly_" . $i] = new StdClass; | |
$object["onlymember"] = array("blah blah blha" => 12345); | |
} | |
unset ($object); | |
} | |
function array_item_unset($iters) { | |
$i = 0; | |
$object = array(); | |
for (;$i < $iters; $i++) { | |
$object["member_" . $i] = array("blah blah blha" => 12345); | |
$object["membersonly_" . $i] = new StdClass; | |
$object["onlymember"] = array("blah blah blha" => 12345); | |
unset ($object["membersonly_" . $i]); | |
unset ($object["member_" . $i]); | |
unset ($object["onlymember"]); | |
} | |
unset ($object); | |
} | |
$callbacks = array( | |
'object_item_unset', | |
'object_parent_unset', | |
'object_no_unset', | |
'array_item_unset', | |
'array_parent_unset', | |
'array_no_unset', | |
); | |
shuffle($callbacks); | |
memdiff(); // Get initial memory usage | |
foreach ( $callbacks as $callback ) | |
{ | |
echo "== $callback ==\n"; | |
$callback($iterations); | |
memdiff(); | |
} |
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