Online PHP editor | output for GVb3I

@ 2020-06-09T06:20:13Z

<?php

$arr = [
    "A - 1.0 - Title Page.PDF",
    "A - 2.2 - Enlarged Floor Plans",
    "A - 2.1.0 - Structural Details.PDF",
    "E - 1.0 - Electrical Title Page.PDF",
    "A - 1.2 - Floor Plan.PDF",
    "P - 1.0 - Plumbing Title Page2.PDF",
    "A - 2.1.1 - Structural Details.PDF",
    "C - 1.0 - Civil Title Page.PDF",
    "M - 1.0 - Mechanical Title Page.PDF",
    "ESC - 1.0 - Erosion Control Plan.PDF",
    "P - 1.0 - Plumbing Title Page.PDF",
];

$priorities = array_flip(['A', 'ESC', 'C', 'M', 'E', 'P']);

usort($arr, function ($a, $b) use ($priorities) {
    [$categoryA, $versionA, $nameA] = explode(' - ', $a, 3);
    [$categoryB, $versionB, $nameB] = explode(' - ', $b, 3);
    
    return $priorities[$categoryA] <=> $priorities[$categoryB]  // priorities as first criteria
        ?: version_compare($versionB, $versionA)                // then descending versions as second criteria
        ?: $nameA <=> $nameB;                                   // then compare names ascending
});
var_export($arr);

Output for 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: array ( 0 => 'A - 2.2 - Enlarged Floor Plans', 1 => 'A - 2.1.1 - Structural Details.PDF', 2 => 'A - 2.1.0 - Structural Details.PDF', 3 => 'A - 1.2 - Floor Plan.PDF', 4 => 'A - 1.0 - Title Page.PDF', 5 => 'ESC - 1.0 - Erosion Control Plan.PDF', 6 => 'C - 1.0 - Civil Title Page.PDF', 7 => 'M - 1.0 - Mechanical Title Page.PDF', 8 => 'E - 1.0 - Electrical Title Page.PDF', 9 => 'P - 1.0 - Plumbing Title Page.PDF', 10 => 'P - 1.0 - Plumbing Title Page2.PDF', )
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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