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run code in 200+ php & hhvm versions
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<?php $fixers = ['short_array_syntax', 'unix_line_endings', 'elseif', 'long_array_syntax', 'echo_to_print', 'print_to_echo']; $conflicts = array( 'unalign_double_arrow' => 'align_double_arrow', 'unalign_equals' => 'align_equals', 'concat_without_spaces' => 'concat_with_spaces', 'concat_with_spaces' => 'concat_without_spaces', 'print_to_echo' => 'echo_to_print', 'short_array_syntax' => 'long_array_syntax', 'single_blank_line_before_namespace' => 'no_blank_lines_before_namespace', 'phpdoc_var_to_type' => 'phpdoc_type_to_var', 'phpdoc_type_to_var' => 'phpdoc_var_to_type', 'echo_to_print' => 'print_to_echo', 'psr4' => 'psr0', 'psr0' => 'psr4', 'long_array_syntax' => ['short_array_syntax', 'phpdoc_var_to_type'], 'no_blank_lines_before_namespace' => 'single_blank_line_before_namespace', 'align_double_arrow' => 'unalign_double_arrow', 'align_equals' => 'unalign_equals', ); foreach ($fixers as $fixer) { if (isset($conflicts[$fixer]) && $conflicts = array_intersect((array) $conflicts[$fixer], $fixers) ) { echo sprintf('Fixer "%s" conflicts with fixers "%s".', $fixer, implode('", "', $conflicts)); } }
based on drGVb
Output for 5.4.0 - 5.6.30, hhvm-3.10.1 - 3.17.3, 7.0.0 - 7.2.6
Fixer "short_array_syntax" conflicts with fixers "long_array_syntax".
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/rcr0d on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/rcr0d on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/rcr0d on line 3
Process exited with code 255.