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<?php $arr = ["a", "b", "a", "c"]; function makeUnique($arr){ $set = []; foreach($arr as $k => $v){ $set[ $v ] = ($set[ $v ] ?? 0) + 1; $arr[ $k ] = $arr[ $k ] . ($set[ $v ] > 1 ? '.' .($set[ $v ] - 1) : ''); } return $arr; } print_r(makeUnique($arr));
Output for 8.0.1 - 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 - 8.5.1
Array ( [0] => a [1] => b [2] => a.1 [3] => c )
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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105.39 ms | 407 KiB | 5 Q