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<?php
 
function getmicrotime()
{
	list($usec, $sec) = explode(' ',microtime());
	return ((float)$usec + (float)$sec);
}
 
$time_start = getmicrotime();
for ($i=0; $i<1000000; $i++)
{
	$test_array = array(0,1,2,3,4,5);
	array_splice($test_array, 3, 1);
}
echo 'array_splice() :: '.number_format(getmicrotime()-$time_start,3).' seconds<br/>';
 
$time_start = getmicrotime();
for ($i=0; $i<1000000; $i++)
{
	$test_array = array(0,1,2,3,4,5);
	unset($test_array[3]);
	$test_array = array_values($test_array);
}
echo 'unset() & array_values() :: '.number_format(getmicrotime()-$time_start,3).' seconds<br/>';
 
?>

<?php function getmicrotime() { list($usec, $sec) = explode(' ',microtime()); return ((float)$usec + (float)$sec); } $time_start = getmicrotime(); for ($i=0; $i<1000000; $i++) { $test_array = array(0,1,2,3,4,5); array_splice($test_array, 3, 1); } echo 'array_splice() :: '.number_format(getmicrotime()-$time_start,3).' seconds<br/>'; $time_start = getmicrotime(); for ($i=0; $i<1000000; $i++) { $test_array = array(0,1,2,3,4,5); unset($test_array[3]); $test_array = array_values($test_array); } echo 'unset() & array_values() :: '.number_format(getmicrotime()-$time_start,3).' seconds<br/>'; ?>