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<?php function a(&$string) { $ln = strlen($string); for ($i = 0; $i < $ln; $i++) $tmp = $string{$i}; echo memory_get_peak_usage()."\n"; echo memory_get_usage()."\n"; } echo memory_get_peak_usage()."\n"; $str = $str2 = $str3 = str_repeat(' ', 1024 * 1024); a($str);
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