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<?php //Serialize $start = microtime(true); for($i=0; $i < 1000; $i++) { $post = array('str', 'blah', 23, 'undefined', 66, 'abc', 'undefined'); $post = unserialize(str_replace('s:9:"undefined";', 's:0:"";', serialize($post))); unset($post); } $end = microtime(true); $s_time = $end - $start; //Plain foreach $start = microtime(true); for($i=0; $i < 1000; $i++) { $post = array('str', 'blah', 23, 'undefined', 66, 'abc', 'undefined'); foreach($post as &$item) { if($item === 'undefined') { $item = ''; } } unset($post); } $end = microtime(true); $f_time = $end - $start; if($s_time > $f_time) { $s_percent = ''; $f_percent = '('.intval($s_time / $f_time).'x)'; } else { $f_percent = ''; $s_percent = '('.intval($f_time / $s_time).'x)'; } printf("Serialize: %s %s\nForeach: %s %s", $s_time, $s_percent, $f_time, $f_percent); ?>
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