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<?php $array = ["a" => "one", "b" => "two", "c" => "three"]; if (!function_exists("array_key_last")) { echo "Please upgrade to php 7.3"; } else { echo "First Key: " , key($array) , "\n"; echo "Last Key: " , array_key_last($array) , "\n"; next($array); echo "Second Key: " , key($array) , "\n"; echo "Last Key: " , array_key_last($array); }
Output for 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
First Key: a Last Key: c Second Key: b Last Key: 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.
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33
Please upgrade to php 7.3
preferences:
183.7 ms | 409 KiB | 5 Q