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run code in 300+ PHP versions simultaneously
<?php /** * Defines PHP-related constants for use with Drupal. */ final class Requirements { /** * Minimum supported version of PHP. */ const MINIMUM_PHP = '5.5.9'; /** * Minimum recommended value of PHP memory_limit. * * 64M was chosen as a minimum requirement in order to allow for additional * contributed modules to be installed prior to hitting the limit. However, * 40M is the target for the Standard installation profile. */ const MINIMUM_PHP_MEMORY_LIMIT = '64M'; /** * Minimum recommended version of PHP. * * Sites installing Drupal on PHP versions lower than this will see a warning * message, but Drupal can still be installed. Used for (e.g.) PHP versions * that have reached their EOL or will in the near future. */ const RECOMMENDED_PHP = '7.1'; } if (version_compare(PHP_VERSION, Requirements::MINIMUM_PHP) < 0) { print 'Your PHP installation is too old. Drupal requires at least PHP 5.5.9. See the <a href="https://www.drupal.org/requirements">system requirements</a> page for more information.'; } else { print 'Your PHP installation is just fine.'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 8
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5mS1U
function name:  (null)
number of ops:  10
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   33     0  E >   INIT_FCALL                                               'version_compare'
          1        SEND_VAL                                                 '8.0.0'
          2        SEND_VAL                                                 '5.5.9'
          3        DO_ICALL                                         $0      
          4        IS_SMALLER                                               $0, 0
          5      > JMPZ                                                     ~1, ->8
   34     6    >   ECHO                                                     'Your+PHP+installation+is+too+old.+Drupal+requires+at+least+PHP+5.5.9.+See+the+%3Ca+href%3D%22https%3A%2F%2Fwww.drupal.org%2Frequirements%22%3Esystem+requirements%3C%2Fa%3E+page+for+more+information.'
          7      > JMP                                                      ->9
   38     8    >   ECHO                                                     'Your+PHP+installation+is+just+fine.'
   39     9    > > RETURN                                                   1

Class Requirements: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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