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run code in 300+ PHP versions simultaneously

@ 2016-06-23T10:10:37Z

<?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));
    }
    
}

Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Fixer "short_array_syntax" conflicts with fixers "long_array_syntax".
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fixer "short_array_syntax" conflicts with fixers "long_array_syntax".
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 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 - 4.3.11, 4.4.0 - 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.

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