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Server IP : 79.136.114.73 / Your IP : 3.23.101.186 Web Server : Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.29 OpenSSL/1.0.1f System : Linux b8009 3.13.0-170-generic #220-Ubuntu SMP Thu May 9 12:40:49 UTC 2019 x86_64 User : www-data ( 33) PHP Version : 5.5.9-1ubuntu4.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /proc/self/root/home/b8009/php-5.6.22/ext/standard/tests/strings/ |
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--TEST-- Testing randomization of shuffle() and str_shuffle(). --FILE-- <?php function stats($f, $a) { $times = 90000; print "$f\n"; ksort($a); foreach($a as $k => $v) print "$k: $v: " . sprintf('%0.3f', $v / $times) . "\n"; } $a = array(); $times = 90000; for ($i = 0; $i < $times; $i++) { $p = range(1,4); shuffle($p); $s = join('', $p); if (empty($a[$s])) $a[$s] = 0; $a[$s]++; } stats('shuffle', $a); $a = array(); $times = 90000; for ($i = 0; $i < $times; $i++) { $p = '1234'; $s = str_shuffle($p); if (empty($a[$s])) $a[$s] = 0; $a[$s]++; } stats('str_shuffle', $a); ?> --EXPECTREGEX-- shuffle 1234: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 1243: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 1324: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 1342: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 1423: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 1432: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2134: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2143: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2314: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2341: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2413: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2431: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3124: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3142: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3214: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3241: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3412: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3421: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4123: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4132: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4213: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4231: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4312: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4321: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] str_shuffle 1234: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 1243: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 1324: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 1342: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 1423: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 1432: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2134: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2143: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2314: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2341: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2413: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 2431: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3124: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3142: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3214: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3241: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3412: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 3421: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4123: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4132: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4213: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4231: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4312: [34][0-9][0-9][0-9]: 0.0[3-4][0-9] 4321: [34][0-9][0-9][0-9]: 0.0[3-4][0-9]