[PHP] 7* Helpers

php-arrays.php

<?php

function reverseArray($arr1) {
  $size = count($arr1);
  
  for($i = $size -1; $i >= 0; $i--) {
    $arr1[$size] = $arr1[$i];
    unset($arr1[$i]);
    $size++
  }
}

php-errors.php

// Turn off all error reporting
error_reporting(0);

// Report simple running errors
error_reporting(E_ERROR | E_WARNING | E_PARSE);

// Reporting E_NOTICE can be good too (to report uninitialized
// variables or catch variable name misspellings ...)
error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);

// Report all errors except E_NOTICE
error_reporting(E_ALL & ~E_NOTICE);

// Report all PHP errors (see changelog)
error_reporting(E_ALL);

// Report all PHP errors
error_reporting(-1);

// Same as error_reporting(E_ALL);
ini_set('error_reporting', E_ALL);

php-factory.php

<?php

interface TestInterface
{
   public function getContent(): string;
  
   public function setContent(string $content);
} 

class Test implements TestInterface
{
   private $content;
   
   public function __construct(string $content) {
     $this->setContent($content);
   }
  
   public function getContent(): string {
      return $this->content;
   }

   public function setContent(string $content) {
     $this->content = $content;
   }
}

class TestFactory
{
  public static function createTest(string $content): Text {
    return new Test($content);
  }
}

php-guide.php

<?php

interface TestInterface
{
   public function getContent(): string;
  
   public function setContent(string $content);
} 

class Test implements TestInterface
{
   private $content;
   
   public function __construct(string $content) {
     $this->setContent($content);
   }
  
   public function getContent(): string {
      return $this->content;
   }

   public function setContent(string $content) {
     $this->content = $content;
   }
}

class TestFactory
{
  public static function createTest(string $content): Test {
    return new Test($content);
  }
}

php-helper.php

Current Magento 2.2.2 PHP 7.4 with preload is 10%+ faster
Comparison of means

PHP 7.4 with preload is 11.07% faster then PHP 7.3

PHP 7.4 with preload is 13.25% faster then PHP 7.1

Sample 1 PHP 7.4 with Preload
Mean:
0.458

Standard deviation:
0.0411

Sample size:
1000

Sample 2 PHP 7.3
Mean:
0.515

Standard deviation:
0.0877

Sample size:
1000

Sample 2 PHP 7.1
Mean:
0.528

Standard deviation:
0.0361

Sample size:
1000

Results
Difference 0.057

Standard error 0.003 95% CI 0.0510 to 0.0630 t-statistic 18.611 DF 1998 Significance level P < 0.0001

Data of the test
With preload

:php kir.morozov$ php-edge-unload && sleep 3s && ab -n 100 http://m2.loc2/
--->  Loading startupitem 'php73-fpm' for php73-fpm
This is ApacheBench, Version 2.3 <$Revision: 1826891 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking m2.loc2 (be patient).....done  


Server Software:        nginx/1.15.9
Server Hostname:        m2.loc2
Server Port:            80

Document Path:          /
Document Length:        215496 bytes

Concurrency Level:      1
Time taken for tests:   51.540 seconds
Complete requests:      100
Failed requests:        0
Total transferred:      21619800 bytes
HTML transferred:       21549600 bytes
Requests per second:    1.94 [#/sec] (mean)
Time per request:       515.395 [ms] (mean)
Time per request:       515.395 [ms] (mean, across all concurrent requests)
Transfer rate:          409.65 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.1      0       1
Processing:   398  515 294.2    460    3323
Waiting:      397  513 294.2    459    3322
Total:        399  515 294.2    460    3323

Percentage of the requests served within a certain time (ms)
  50%    460
  66%    501
  75%    518
  80%    534
  90%    607
  95%    720
  98%    801
  99%   3323
 100%   3323 (longest request)
:php kir.morozov$ sleep 3s && ab -n 100 http://m2.loc2/
This is ApacheBench, Version 2.3 <$Revision: 1826891 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking m2.loc2 (be patient).....done


Server Software:        nginx/1.15.9
Server Hostname:        m2.loc2
Server Port:            80

Document Path:          /
Document Length:        215496 bytes

Concurrency Level:      1
Time taken for tests:   46.709 seconds
Complete requests:      100
Failed requests:        0
Total transferred:      21619800 bytes
HTML transferred:       21549600 bytes
Requests per second:    2.14 [#/sec] (mean)
Time per request:       467.089 [ms] (mean)
Time per request:       467.089 [ms] (mean, across all concurrent requests)
Transfer rate:          452.01 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.1      0       1
Processing:   392  466 108.6    445    1462
Waiting:      390  465 108.6    444    1460
Total:        392  467 108.6    446    1462

Percentage of the requests served within a certain time (ms)
  50%    446
  66%    466
  75%    481
  80%    491
  90%    521
  95%    557
  98%    585
  99%   1462
 100%   1462 (longest request)
:php kir.morozov$ sleep 3s && ab -c2 -n 1000 http://m2.loc2/
This is ApacheBench, Version 2.3 <$Revision: 1826891 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking m2.loc2 (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests


Server Software:        nginx/1.15.9
Server Hostname:        m2.loc2
Server Port:            80

Document Path:          /
Document Length:        215496 bytes

Concurrency Level:      2
Time taken for tests:   258.342 seconds
Complete requests:      1000
Failed requests:        0
Total transferred:      216198000 bytes
HTML transferred:       215496000 bytes
Requests per second:    3.87 [#/sec] (mean)
Time per request:       516.683 [ms] (mean)
Time per request:       258.342 [ms] (mean, across all concurrent requests)
Transfer rate:          817.25 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.2      0       3
Processing:   399  515  87.7    511    1635
Waiting:      397  512  87.4    509    1631
Total:        400  515  87.7    511    1635

Percentage of the requests served within a certain time (ms)
  50%    511
  66%    526
  75%    532
  80%    539
  90%    563
  95%    604
  98%    722
  99%    869
 100%   1635 (longest request)
With PHP Preload ```bash :php kir.morozov$ php-edge-load && sleep 3s && ab -n 100 http://m2.loc2/ ---> Unloading startupitem 'php73-fpm' for php73-fpm This is ApacheBench, Version 2.3 <$Revision: 1826891 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking m2.loc2 (be patient).....done

Server Software: nginx/1.15.9 Server Hostname: m2.loc2 Server Port: 80

Document Path: / Document Length: 210652 bytes

Concurrency Level: 1 Time taken for tests: 49.679 seconds Complete requests: 100 Failed requests: 0 Total transferred: 21135800 bytes HTML transferred: 21065200 bytes Requests per second: 2.01 [#/sec] (mean) Time per request: 496.787 [ms] (mean) Time per request: 496.787 [ms] (mean, across all concurrent requests) Transfer rate: 415.48 [Kbytes/sec] received

Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.1 0 1 Processing: 369 496 370.2 440 4092 Waiting: 367 494 370.1 438 4090 Total: 369 496 370.2 440 4093

Percentage of the requests served within a certain time (ms) 50% 440 66% 452 75% 472 80% 486 90% 541 95% 667 98% 803 99% 4093 100% 4093 (longest request) :php kir.morozov$ sleep 3s && ab -c2 -n 1000 http://m2.loc2/ This is ApacheBench, Version 2.3 <$Revision: 1826891 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking m2.loc2 (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requests Completed 500 requests Completed 600 requests Completed 700 requests Completed 800 requests Completed 900 requests Completed 1000 requests Finished 1000 requests

Server Software: nginx/1.15.9 Server Hostname: m2.loc2 Server Port: 80

Document Path: / Document Length: 210652 bytes

Concurrency Level: 2 Time taken for tests: 229.723 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 211358000 bytes HTML transferred: 210652000 bytes Requests per second: 4.35 [#/sec] (mean) Time per request: 459.445 [ms] (mean) Time per request: 229.723 [ms] (mean, across all concurrent requests) Transfer rate: 898.49 [Kbytes/sec] received

Connection Times (ms) min mean[+/-sd] median max Connect: 0 1 0.1 1 1 Processing: 376 457 41.1 449 678 Waiting: 375 455 41.0 447 676 Total: 377 458 41.1 450 678

Percentage of the requests served within a certain time (ms) 50% 450 66% 467 75% 485 80% 493 90% 512 95% 529 98% 555 99% 592 100% 678 (longest request) PHP 7.1bash $ sleep 3s && ab -n 100 http://m2.loc2/ This is ApacheBench, Version 2.3 <$Revision: 1826891 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking m2.loc2 (be patient).....done

Server Software: nginx/1.15.9 Server Hostname: m2.loc2 Server Port: 80

Document Path: / Document Length: 215496 bytes

Concurrency Level: 1 Time taken for tests: 58.168 seconds Complete requests: 100 Failed requests: 0 Total transferred: 21619900 bytes HTML transferred: 21549600 bytes Requests per second: 1.72 [#/sec] (mean) Time per request: 581.683 [ms] (mean) Time per request: 581.683 [ms] (mean, across all concurrent requests) Transfer rate: 362.97 [Kbytes/sec] received

Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.1 0 1 Processing: 414 581 437.6 519 4774 Waiting: 403 570 437.0 508 4757 Total: 414 581 437.6 519 4774

Percentage of the requests served within a certain time (ms) 50% 519 66% 530 75% 543 80% 553 90% 660 95% 825 98% 1278 99% 4774 100% 4774 (longest request) :php kir.morozov$ sleep 3s && ab -c2 -n 1000 http://m2.loc2/ This is ApacheBench, Version 2.3 <$Revision: 1826891 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking m2.loc2 (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requests Completed 500 requests Completed 600 requests Completed 700 requests Completed 800 requests Completed 900 requests Completed 1000 requests Finished 1000 requests

Server Software: nginx/1.15.9 Server Hostname: m2.loc2 Server Port: 80

Document Path: / Document Length: 215496 bytes

Concurrency Level: 2 Time taken for tests: 264.837 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 216199000 bytes HTML transferred: 215496000 bytes Requests per second: 3.78 [#/sec] (mean) Time per request: 529.674 [ms] (mean) Time per request: 264.837 [ms] (mean, across all concurrent requests) Transfer rate: 797.21 [Kbytes/sec] received

Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.1 0 2 Processing: 429 528 36.1 523 810 Waiting: 418 515 35.9 511 798 Total: 429 528 36.1 524 811

Percentage of the requests served within a certain time (ms) 50% 524 66% 535 75% 543 80% 551 90% 567 95% 587 98% 613 99% 655 100% 811 (longest request) ```