3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ ['id' => 7867867, 'animal' => 'Dog'], ['id' => 3452342, 'animal' => 'Lion'], ['id' => 1231233, 'animal' => 'Lion'], ['id' => 5867867, 'animal' => 'Dog'], ['id' => 1111111, 'animal' => 'Zeebra'], ['id' => 2222222, 'animal' => 'Cat'], ['id' => 3333333, 'animal' => 'Cat'], ['id' => 4444444, 'animal' => 'Zeebra'] ]; $priorities = array_flip(['Lion', 'Dog', 'Zeebra', 'Cat']); usort($array, fn($a, $b) => $priorities[$a['animal']] <=> $priorities[$b['animal']]); var_export($array);
Output for 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 => array ( 'id' => 3452342, 'animal' => 'Lion', ), 1 => array ( 'id' => 1231233, 'animal' => 'Lion', ), 2 => array ( 'id' => 7867867, 'animal' => 'Dog', ), 3 => array ( 'id' => 5867867, 'animal' => 'Dog', ), 4 => array ( 'id' => 1111111, 'animal' => 'Zeebra', ), 5 => array ( 'id' => 4444444, 'animal' => 'Zeebra', ), 6 => array ( 'id' => 2222222, 'animal' => 'Cat', ), 7 => array ( 'id' => 3333333, 'animal' => 'Cat', ), )
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 7.3.0 - 7.3.33
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ')' in /in/tQru6 on line 15
Process exited with code 255.
Output for 7.1.26 - 7.1.33, 7.2.0 - 7.2.33
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ',' or ')' in /in/tQru6 on line 15
Process exited with code 255.
preferences:
180.66 ms | 411 KiB | 5 Q