Online PHP editor | perf for XuJE6

@ 2015-12-28T10:13:50Z

<?php
class encryption_class 
{ 
   var $scramble1;      // 1st string of ASCII characters 
   var $scramble2;      // 2nd string of ASCII characters 
   var $errors;         // array of error messages 
   var $adj;            // 1st adjustment value (optional) 
   var $mod;            // 2nd adjustment value (optional) 
   
   function encryption_class () 
   { 
      // Each of these two strings must contain the same characters, but in a different order. 
      // Use only printable characters from the ASCII table. 
      // Each character can only appear once in each string EXCEPT for the first character 
      // which must be duplicated at the end (this gets round a bijou problemette when the 
      // first character of the password is also the first character in $scramble1) 
      $this->scramble1 = '! "#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!'; 
      $this->scramble2 = 'f^jAE]okI\OzU[2&q1{3`h5w_794p@6s8?BgP>dFV=m D<TcS%Ze|r:lGK/uCy.Jx)HiQ!"#$\'~(;Lt-R}Ma,NvW+Ynb*0Xf'; 
       
      if (strlen($this->scramble1) <> strlen($this->scramble2)) { 
         $this->errors[] = '** SCRAMBLE1 is not same length as SCRAMBLE2 **'; 
      } // if 
       
      $this->adj = 1.75;    // this value is added to the rolling fudgefactors 
      $this->mod = 3;       // if divisible by this the adjustment is made negative 
       
   } // constructor 
   
   
   function encrypt ($key, $source, $sourcelen=0) 
   {
      $this->errors = array();
      
      $fudgefactor = $this->_convertKey($key); 
      if ($this->errors) return; 
      if (empty($source)) { 
         $this->errors[] = 'No value has been supplied for encryption'; 
         return; 
      } // if 
      while (strlen($source) < $sourcelen) { 
         $source .= ' '; 
      } // while 
      $target  = NULL; 
      $factor2 = 0;
      for ($i = 0; $i < strlen($source); $i++) {
         $char1 = substr($source, $i, 1); 
         $num1 = strpos($this->scramble1, $char1); 
         if ($num1 === false) { 
            $this->errors[] = "Source string contains an invalid character ($char1)"; 
            return; 
         } // if 
         $adj = $this->_applyFudgeFactor($fudgefactor);
         $factor1 = $factor2 + $adj;
         $num2    = round($factor1) + $num1;        // generate offset for $scramble2
         $num2    = $this->_checkRange($num2);      // check range
         $factor2 = $factor1 + $num2;               // accumulate in $factor 
         $char2 = substr($this->scramble2, $num2, 1); 
         $target .= $char2;
      } // for 
       
      return $target; 
       
   } // encrypt 

   

   function _convertKey ($key) 
   { 
      if (empty($key)) { 
         $this->errors[] = 'No value has been supplied for the encryption key'; 
         return; 
      } // if 
      $array[] = strlen($key);
      $tot = 0;  
      for ($i = 0; $i < strlen($key); $i++) {
         $char = substr($key, $i, 1); 
         $num = strpos($this->scramble1, $char); 
         if ($num === false) { 
            $this->errors[] = "Key contains an invalid character ($char)"; 
            return; 
         } // if 
         $array[] = $num; 
         $tot = $tot + $num;
      } // for 
       
      $array[] = $tot; 
       
      return $array; 
    
   } // _convertKey 


   function _applyFudgeFactor (&$fudgefactor) 
   {
      $fudge = array_shift($fudgefactor);
      $fudge = $fudge + $this->adj;
      $fudgefactor[] = $fudge;
      if (!empty($this->mod)) {           // if modifier has been supplied 
         if ($fudge % $this->mod == 0) {  // if it is divisible by modifier 
            $fudge = $fudge * -1;         // reverse then sign 
         } // if 
      } // if 
      return $fudge; 
       
   } // _applyFudgeFactor 


   function _checkRange ($num) 
   {
      $limit = strlen($this->scramble1)-1; 
      while ($num > $limit) { 
         $num = $num - $limit; 
      } // while 
      while ($num < 0) { 
         $num = $num + $limit; 
      } // while 
      return $num; 
       
   } // _checkRange 


   function decrypt ($key, $source) 
   { 
      $this->errors = array();
       
      $fudgefactor = $this->_convertKey($key); 
      if ($this->errors) return; 
      if (empty($source)) { 
         $this->errors[] = 'No value has been supplied for decryption'; 
         return; 
      } // if 
      $target  = NULL; 
      $factor2 = 0; 
      for ($i = 0; $i < strlen($source); $i++) {
         $char2 = substr($source, $i, 1); 
         $num2  = strpos($this->scramble2, $char2); 
         if ($num2 === false) { 
            $this->errors[] = "Source string contains an invalid character ($char2)"; 
            return; 
         } // if
         if ($num2 == 0) {
             // use the last occurrence of this letter, not the first
             $num2 = strlen($this->scramble1)-1;
         } // if
         $adj = $this->_applyFudgeFactor($fudgefactor); 
         $factor1 = $factor2 + $adj;
         $num1    = round($factor1*-1) + $num2;     // generate offset for $scramble1
         $num1    = $this->_checkRange($num1);      // check range
         $factor2 = $factor1 + $num2;               // accumulate in $factor2 
         $char1 = substr($this->scramble1, $num1, 1); 
         $target .= $char1;
      } // for 
       
      return rtrim($target); 
       
   } // decrypt 
}

$crypt = new encryption_class;
echo $crypt->decrypt("ptufednkji", "bN,%vZ+R,rg/\9");
?>

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.3.6	0.015	0.006	17.00
8.3.5	0.011	0.004	16.49
8.3.4	0.011	0.003	18.84
8.3.3	0.015	0.000	18.63
8.3.2	0.005	0.002	20.34
8.3.1	0.003	0.006	21.89
8.3.0	0.003	0.005	23.49
8.2.18	0.011	0.007	25.92
8.2.17	0.009	0.006	22.96
8.2.16	0.014	0.003	20.47
8.2.15	0.003	0.005	24.18
8.2.14	0.000	0.008	24.66
8.2.13	0.003	0.006	19.76
8.2.12	0.004	0.004	26.35
8.2.11	0.003	0.007	20.63
8.2.10	0.004	0.008	18.16
8.2.9	0.005	0.003	19.31
8.2.8	0.000	0.008	18.15
8.2.7	0.000	0.009	17.88
8.2.6	0.003	0.006	18.16
8.2.5	0.004	0.004	18.07
8.2.4	0.005	0.005	22.21
8.2.3	0.000	0.007	19.50
8.2.2	0.004	0.004	17.81
8.2.1	0.005	0.003	18.09
8.2.0	0.008	0.000	18.09
8.1.28	0.006	0.009	25.92
8.1.27	0.000	0.009	20.38
8.1.26	0.004	0.004	28.09
8.1.25	0.004	0.004	28.09
8.1.24	0.003	0.006	22.17
8.1.23	0.008	0.004	19.22
8.1.22	0.000	0.009	17.74
8.1.21	0.008	0.000	18.77
8.1.20	0.003	0.006	17.48
8.1.19	0.004	0.004	17.23
8.1.18	0.000	0.008	18.10
8.1.17	0.008	0.000	18.71
8.1.16	0.005	0.003	20.79
8.1.15	0.008	0.000	18.98
8.1.14	0.004	0.004	19.62
8.1.13	0.003	0.003	17.79
8.1.12	0.000	0.007	17.41
8.1.11	0.004	0.004	17.44
8.1.10	0.004	0.004	17.50
8.1.9	0.007	0.000	17.42
8.1.8	0.000	0.008	17.46
8.1.7	0.004	0.004	17.48
8.1.6	0.005	0.002	17.59
8.1.5	0.008	0.003	17.61
8.1.4	0.005	0.003	17.59
8.1.3	0.009	0.000	17.68
8.1.2	0.003	0.005	17.63
8.1.1	0.000	0.007	17.69
8.1.0	0.000	0.007	17.66
8.0.30	0.005	0.005	18.77
8.0.29	0.007	0.000	16.88
8.0.28	0.003	0.006	18.57
8.0.27	0.000	0.007	17.34
8.0.26	0.003	0.003	18.72
8.0.25	0.007	0.003	16.88
8.0.24	0.000	0.007	17.07
8.0.23	0.005	0.002	17.05
8.0.22	0.008	0.000	17.04
8.0.21	0.004	0.004	17.02
8.0.20	0.003	0.003	17.05
8.0.19	0.000	0.007	16.98
8.0.18	0.003	0.006	17.02
8.0.17	0.003	0.006	16.91
8.0.16	0.000	0.008	17.02
8.0.15	0.000	0.008	16.87
8.0.14	0.005	0.002	16.98
8.0.13	0.007	0.000	13.48
8.0.12	0.006	0.003	16.92
8.0.11	0.005	0.002	16.91
8.0.10	0.004	0.004	16.88
8.0.9	0.004	0.004	17.00
8.0.8	0.013	0.008	16.92
8.0.7	0.004	0.004	16.80
8.0.6	0.000	0.007	17.02
8.0.5	0.000	0.007	16.78
8.0.3	0.013	0.004	17.05
8.0.2	0.011	0.008	17.40
8.0.1	0.000	0.008	16.94
8.0.0	0.010	0.007	16.87
7.4.33	0.005	0.000	16.97
7.4.32	0.003	0.003	16.52
7.4.30	0.000	0.007	16.66
7.4.29	0.004	0.004	16.66
7.4.28	0.003	0.007	16.68
7.4.27	0.000	0.007	16.82
7.4.26	0.000	0.007	16.63
7.4.25	0.005	0.003	16.73
7.4.24	0.003	0.005	16.68
7.4.23	0.004	0.004	16.86
7.4.22	0.006	0.019	16.66
7.4.21	0.011	0.004	16.84
7.4.20	0.000	0.007	16.79
7.4.16	0.007	0.010	16.73
7.4.15	0.011	0.007	17.40
7.4.14	0.010	0.014	17.86
7.4.13	0.015	0.006	16.64
7.4.12	0.011	0.006	16.74
7.4.11	0.009	0.009	16.87
7.4.10	0.013	0.010	16.81
7.4.9	0.012	0.006	16.77
7.4.8	0.011	0.008	19.39
7.4.7	0.011	0.006	16.70
7.4.6	0.018	0.000	16.76
7.4.5	0.007	0.003	16.71
7.4.4	0.011	0.006	16.39
7.4.3	0.011	0.011	16.77
7.4.0	0.003	0.009	15.16
7.3.33	0.005	0.000	13.56
7.3.32	0.004	0.004	13.40
7.3.31	0.008	0.000	16.57
7.3.30	0.000	0.007	16.57
7.3.29	0.006	0.013	16.57
7.3.28	0.008	0.009	16.59
7.3.27	0.003	0.014	17.40
7.3.26	0.009	0.009	16.79
7.3.25	0.009	0.008	16.64
7.3.24	0.007	0.010	16.77
7.3.23	0.009	0.009	16.79
7.3.21	0.010	0.007	16.82
7.3.20	0.006	0.012	19.39
7.3.19	0.010	0.010	16.57
7.3.18	0.006	0.012	16.64
7.3.17	0.009	0.012	16.56
7.3.16	0.014	0.004	16.67
7.3.12	0.003	0.012	15.14
7.3.11	0.010	0.006	15.07
7.3.10	0.000	0.014	14.96
7.3.9	0.007	0.007	14.75
7.3.8	0.005	0.005	14.95
7.3.7	0.006	0.009	14.98
7.3.6	0.003	0.010	14.68
7.3.5	0.006	0.009	15.04
7.3.4	0.003	0.010	15.01
7.3.3	0.000	0.010	14.93
7.3.2	0.006	0.009	16.70
7.3.1	0.005	0.005	16.79
7.3.0	0.006	0.006	16.47
7.2.33	0.006	0.012	16.63
7.2.32	0.013	0.003	16.98
7.2.31	0.013	0.003	16.81
7.2.30	0.009	0.009	16.56
7.2.29	0.007	0.010	16.87
7.2.24	0.004	0.008	15.39
7.2.23	0.003	0.015	15.29
7.2.22	0.010	0.003	15.29
7.2.21	0.006	0.006	14.80
7.2.20	0.006	0.009	15.13
7.2.19	0.007	0.007	14.86
7.2.18	0.003	0.010	15.04
7.2.17	0.003	0.013	15.19
7.2.16	0.007	0.007	15.23
7.2.15	0.000	0.015	16.99
7.2.14	0.008	0.008	16.69
7.2.13	0.006	0.003	16.93
7.2.12	0.004	0.007	16.90
7.2.11	0.003	0.010	16.80
7.2.10	0.009	0.006	16.97
7.2.9	0.007	0.013	17.09
7.2.8	0.013	0.003	17.05
7.2.7	0.009	0.006	16.86
7.2.6	0.006	0.007	16.97
7.2.5	0.003	0.007	16.92
7.2.4	0.000	0.015	16.99
7.2.3	0.004	0.007	17.00
7.2.2	0.000	0.013	17.01
7.2.1	0.010	0.004	16.92
7.2.0	0.007	0.007	17.97
7.1.33	0.003	0.010	15.98
7.1.32	0.007	0.010	15.95
7.1.31	0.000	0.014	15.92
7.1.30	0.000	0.009	15.64
7.1.29	0.006	0.003	15.69
7.1.28	0.010	0.007	15.63
7.1.27	0.004	0.004	15.66
7.1.26	0.012	0.003	15.97
7.1.25	0.004	0.011	15.75
7.1.20	0.004	0.008	15.83
7.1.10	0.000	0.014	18.06
7.1.7	0.004	0.004	17.09
7.1.6	0.012	0.003	19.30
7.1.5	0.003	0.024	17.06
7.1.0	0.007	0.073	22.51
7.0.20	0.007	0.003	16.95
7.0.6	0.020	0.080	21.74
7.0.5	0.010	0.077	17.92
7.0.4	0.003	0.070	20.04
7.0.3	0.017	0.047	20.06
7.0.2	0.023	0.087	20.30
7.0.1	0.013	0.080	20.25
7.0.0	0.003	0.063	20.22
5.6.28	0.000	0.070	21.16
5.6.21	0.010	0.070	20.51
5.6.20	0.003	0.060	18.29
5.6.19	0.007	0.090	20.61
5.6.18	0.050	0.067	20.51
5.6.17	0.027	0.080	20.46
5.6.16	0.007	0.067	20.56
5.6.15	0.017	0.040	18.16
5.6.14	0.010	0.077	18.19
5.6.13	0.010	0.057	18.25
5.6.12	0.010	0.067	21.04
5.6.11	0.007	0.083	21.18
5.6.10	0.010	0.080	21.01
5.6.9	0.017	0.073	21.09
5.6.8	0.000	0.043	20.42
5.5.35	0.007	0.070	20.44
5.5.34	0.013	0.070	17.99
5.5.33	0.003	0.073	20.37
5.5.32	0.067	0.053	20.37
5.5.31	0.020	0.050	20.47
5.5.30	0.010	0.077	17.96
5.5.29	0.003	0.040	18.06
5.5.28	0.007	0.040	20.83
5.5.27	0.007	0.050	20.82
5.5.26	0.010	0.073	20.93
5.5.25	0.007	0.073	20.64
5.5.24	0.010	0.043	20.15

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