Created
February 2, 2015 15:15
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Unset() + redeclare vs. redeclare ONLY
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| <?php | |
| error_reporting(E_ALL); | |
| ini_set('display_errors', 1); | |
| $array_length = 800000; | |
| $test_array = []; | |
| for ($i = 0; $i < $array_length; $i++) { | |
| $test_array[] = 'm51365283002'; | |
| } | |
| echo count($test_array) . " items in string<br>"; | |
| $mtime = microtime(); | |
| $mtime = explode(" ", $mtime); | |
| $mtime = $mtime[1] + $mtime[0]; | |
| $starttime = $mtime; | |
| unset($test_array); | |
| $test_array = []; | |
| echo memory_get_peak_usage(true) . ' memory used<br>'; | |
| $mtime = microtime(); | |
| $mtime = explode(" ", $mtime); | |
| $mtime = $mtime[1] + $mtime[0]; | |
| $endtime = $mtime; | |
| $totaltime = ($endtime - $starttime); | |
| echo('unset() and redeclare executing in: ' . $totaltime . " seconds<br>"); | |
| # ============================================== | |
| $test_array = []; | |
| for ($i = 0; $i < $array_length; $i++) { | |
| $test_array[] = 'm51365283002'; | |
| } | |
| $mtime = microtime(); | |
| $mtime = explode(" ", $mtime); | |
| $mtime = $mtime[1] + $mtime[0]; | |
| $starttime = $mtime; | |
| $test_array = []; | |
| echo memory_get_peak_usage(true) . ' memory used<br>'; | |
| $mtime = microtime(); | |
| $mtime = explode(" ", $mtime); | |
| $mtime = $mtime[1] + $mtime[0]; | |
| $endtime = $mtime; | |
| $totaltime = ($endtime - $starttime); | |
| echo('redeclare ONLY executing in: ' . $totaltime . " seconds<br>"); |
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